1·Twenty one people have been rescued.
目前已有21人获救。
2·The woman replied, "I'm twenty one and some months."
这位女士回答：「我是二十一岁又几个月。」
3·One hundred and twenty one countries are now contracting parties to the Convention.
目前，已有121个国家成为本公约的缔约方。
4·We waited twenty-one years, don't fail us now.
我们等了21年，如今不要辜负我们。
—— 《柯林斯英汉双解大词典》
5·I was twenty-two – no, twenty-one.
我那时22岁。—噢不，21岁。
—— 《柯林斯英汉双解大词典》
6·He was stricken at twenty-one with a crippling malady.
二十一岁时腿瘸疾病让他受到重击。
—— 《柯林斯英汉双解大词典》
7·The government implemented a rule that the guinea is worth twenty-one shillings.
政府实施了一项规定，即一几尼价值21先令。
8·Since its beginning, the program has now grown and has twenty-one therapy dogs and a therapy cat.
从一开始，这个项目就不断扩大，现在有21只治疗犬和一只治疗猫。
9·I have kept a record of informal conversations involving some 300 students from at least twenty-one colleges and universities.
我记录了来自至少21所高等院校的300名学生的非正式谈话。
10·That twenty-one ceramic dog figurines were discovered during the excavating of a 1,000-year-old Hohokam village in Tempe, Arizona, has nearly doubled the number of these artifacts known to exist.
在对亚利桑那州坦佩的霍霍坎村进行挖掘时，发现了21件陶制狗像，这使得已知的狗像数量增加了近一倍。