1·We have invited fifty people altogether.
我们共邀请了五十人。
—— 《牛津词典》
2·I backed the winner and won fifty pounds.
我押对了赌注,赢了五十英镑。
—— 《牛津词典》
3·That would probably cost you about fifty bucks.
那可能会花费你大约五十美元。
—— 《柯林斯英汉双解大词典》
4·Can you read a car number plate at fifty metres?
在五十米远处你能看清汽车牌吗?
—— 《牛津词典》
5·This is his sunset tour after fifty years as a singer.
这是他五十年歌手生涯结束前最后一次巡回演出。
—— 《牛津词典》