Around fifty people die of hunger every day in the camp.
集中营里每天大约有五十人饿死。
To look at him you'd never think he was nearly fifty.
看他的外表，谁也想不到他年近五十了。
He's ancient ─ he must be at least fifty!
他老得很了——肯定至少有五十岁！
Students in fifty schools are to act as guinea pigs for these new teaching methods.
五十所学校的学生将作为这些新教学法的试验对象。
The ceremony was transmitted live by satellite to over fifty countries.
典礼通过卫星向五十多个国家进行了实况转播。