voucher
n
1 (Brit) document, showing that money has been paid or promised, which can be exchanged for certain goods or services (代替现金的)凭单, 凭证, 代金券
`gift vouchers, ie offered as presents and later exchanged at the store for goods 礼券
special discount vouchers 优惠券
luncheon vouchers, ie tokens supplied by some employers, exchangeable for food at restaurants which have agreed to accept them 午餐代用券.
2 document showing that money has been paid for goods, etc received; receipt 收据; 收条.
OK, everyone. Less noise, please! Gather round and listen carefully. First we are going to search the beach and the rock pools. Let me remind you what we are looking for: seaweeds, fish, plants, all living things. When you find anything, make a note where
00在这里集合,游泳之后再吃午餐。别着急!我们有足够的时间。
But I was delighted to be able to say words that my family and a few friends could understand.
是,我却感到欣喜,能够说出我家里人和一些朋友可以理解的词语。
After working with bees for many years, Professor Von Frisch was puzzled by something he had noticed again and again.