fifty 五十个人;五十岁;五十年代;编号为五十的东西五十;五十个英式音标[fft]美式音标[ffti]
Fifty pounds is the best I can offer you.
我顶多出五十英镑。
I\'d say he was about fifty.
我猜他五十岁上下。
Roughly speaking, we receive about fifty letters a week on the subject.
关于这个问题，粗略地说，我们每周能收到大约五十封来信。
水利万物而不争,
而万物莫能与之争。
