A man needs to spend much time on a foreign language before he can__it well .
题目
A man needs to spend much time on a foreign language before he can__it well .
用say 还是speak 为什么?
答案
使用某种语言用speak.看英语解释:If you speak a language,you know the language and are able to have a conversation in it.例如:He doesn't speak English...他不会讲英语.Many of them can speak two or thre...
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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