the meeting was concerned ()reforms and everyone present was concerned()their own interest.
题目
the meeting was concerned ()reforms and everyone present was concerned()their own interest.
答案
be concerned with sth 与某事相关
be concerned about/for 对某事感兴趣,关心某事或某人
这个会议是一个关于改革的会议,但是所有与会者都只对关心他们自己的利益.
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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