书籍 Four Corners 4 - 第五单元 C 课

used in negative statement to describe a situation that has existed up to this point or up to the present time

the skill and knowledge we gain from doing, feeling, or seeing things

happening later than the intended or expected time

to improve a machine, computer system, etc. in terms of efficiency, standards, etc.

(of a document, contract, etc.) to no longer be legally recognized because of reaching the end of validity period

an important matter about which people argue or talk

to sell more tickets or accept more reservations than the available number of seats, rooms, etc.

to formally promise that specific conditions related to a product, service, etc. will be fulfilled

pressed together or compressed

to give something or someone more credit than is deserved

expensive in way that is not reasonable

the act of reducing the usual price of something

the act of arriving at a place from somewhere else

到达

to use words and give someone information

to make a person remember an obligation, task, etc. so that they do not forget to do it

suitcases, bags, etc. to keep one's clothes and other belongings while traveling

to tell someone in advance about a possible danger, problem, or unfavorable situation

to provide someone with suggestion or guidance regarding a specific situation