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 don't think anyone would disagree.
我想没人会反对。
He has a telephone set.
他有一部电话。
When the Ambassador or Escalopia returned home for lunch, his wife got a shock.
当艾斯卡罗比亚国的大使回到家吃午饭时，把他的夫人吓了一跳。