Be useful at
熟悉,精通,擅长…
🧩 词语组成解析
be
[bi]
v. 是;有，存在;做，成为;发生;
aux. 用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质;
at
[æt]
prep. （表示位置）在;在（某时间或时刻）;以，达; 向，朝;
n. 阿特（老挝辅币单位，100 阿特 = 1 基普）;
🗣️ 情景例句
I decided to give full-time attention to raising Robbie.
我决定全力抚育他。
He has lived here for a year.
他在这里住了一年了。[表示持续到现在的行为]
unlike, say, a buyer of goods, cannot complain that the law is loaded against him.
但是储户不能像货物的买主那样来抱怨法律对自己不利。