At pains
尽力, 用心
🧩 词语组成解析
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）;
pains
[penz]
n. 麻烦，辛苦;痛苦( pain的名词复数 );劳苦;令人厌烦的人[事物];身体某部分的疼痛[不适];
🗣️ 情景例句
He has enormous funds at his command.
他掌握着巨额资金。
Friends are lost by calling often and calling seldom.
交往过密过疏，都会失去朋友。
Do they go to school in China?
他们在中国上学？