something that we wear to cover and protect our feet, generally made of strong materials like leather or plastic
鞋
the part of a photograph, etc. that is situated behind the main figures, etc.
背景, 后景
an amount or sheet of something covering a surface or lying between two other things
层, 层次
an individual with a great amount of knowledge, skill, or training in a particular field
专家, 行家
the branch of the armed forces that operates at sea using warships, destroyers, etc.
海军, 舰队
the branch of the armed forces that operates in the air using fighter aircraft
空军, 航空部队
a feeling of expectation and desire for a particular thing to happen or to be true
希望, 期待
a piece of body tissue that is made tight or relaxed when we want to move a particular part of our body
肌肉
a road or path that is rough and usually made by animals or people repeatedly walking there
小路, 踪迹
a group of people who work together for a particular reason, such as a business, department, etc.
组织, 机构