ACT 英语和世界知识 - 物理世界

the process of wearing down or smoothing a surface through friction, typically caused by rubbing, scraping, or erosion

the outer surface or outermost layer of an object, building, etc.

the act of fully submerging something into a liquid or substance, typically for the purpose of soaking

a tiny, discrete unit of matter or substance that can range from subatomic particles like electrons and protons to larger particles like dust or sand grains

a narrow, flat piece of wood, metal, or plastic, typically used as a component in structures like fences, blinds, or furniture

a space or area that is closed off or surrounded by walls, fences, or barriers, often used for containment, protection, or confinement

a small indented area or alcove set back into a wall or other surface

a recessed part of a wall that is built further back from the rest of it

the outer edge or border of a circular object, often serving as a boundary or support

the area adjacent to the edge of a street or road where vehicles can park or where services, such as deliveries or pickups, often take place

a depression or hollow in a surface, typically caused by impact or pressure

a hollow part or cavity into which something fits, typically used to connect or hold objects in place

a long, narrow excavation or ditch dug into the ground, typically for military purposes, drainage, or archaeological exploration

a black powdery substance produced by burning materials like wood or coal

an empty or vacant space within a solid object or within a larger area, typically devoid of substance

a space that is utterly empty of all matter

words, letters, or symbols that are engraved, carved, or written on a surface, often for commemorative, informational, or decorative purposes

to remove a thin layer or small amount of something from a surface using a sharp or rough edge

to plunge or immerse entirely beneath the surface of a liquid, typically water

to crush something into small particles by rubbing or pressing it against a hard surface

to crush or grind something into a fine powder or particles, often through mechanical means or forceful impact

to make something slightly wet or moist

to completely cover something with liquid by pouring it onto it

to produce small drops of liquid on the surface of the skin, often as a result of physical exertion, anxiety, or heat

to give someone or something food and other things which are needed in order to grow, live, and maintain health

to infect or dirty something with a disease or harmful microorganism

to come into sudden and forceful contact with another object or person

to make it so that nothing can move through something

to move through something, typically overcoming resistance

to cause injury to the surface of one's skin by rubbing it against something rough

to suddenly and violently break open or apart, particularly as a result of internal pressure

to crack something into multiple parts or pieces

(of a pipe or similar structure) to burst or break apart suddenly

to cut something using a sharp tool, often with precision and accuracy

to take apart or disassemble a structure, machine, or object, breaking it down into its individual parts

to release or detach something by rotating it in a counter-clockwise direction, thereby loosening its fastening or connection

to break suddenly into several pieces

(of a construction) to fall down suddenly, particularly due to being damaged or weak

to completely destroy or to knock down a building or another structure

related to something that is moving or transported through the air

looking dark, dirty, or shabby, often because of not being taken care of or cleaned properly