第14课

to go on a business trip

towel

toothpaste

heavy, weighty

to be OK, to be all right

to save, to economize

to pollute

restroom, bathroom

dirty

to be sorry

empty

box, case

to throw away

via, by means of

speed

earth, globe

since, as, now that

to stop, to cease

complacent, gloating

aim, purpose

warm

plastic bag

hence, therefore

to encourage

to refuse, to reject

to reduce, to decrease

quantity, amount

temperature

to take (a vehicle), to ride (in a vehicle)

to throw, to cast

dustbin, trash can

beautiful