책 Four Corners 4 - 유닛 5 레슨 C

in a continuous manner up to the present moment

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

problems or difficulties that arise, especially in relation to a service or facility, which require resolution or attention

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

densely filled or crowded with people or things

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

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