🧩 词语组成解析
research
['risɝtʃ]
n. 研究，追究;探讨，探测;调查;探索;
vi. 做研究;探究;（从市场调研中）得出所预测的结果;
vt. 从事…的研究，为…而做研究;
re(again)+search(to go round)→研究；调查
lab
[læb]
n. 实验室，研究室;Lab,英国政治工党;分析室;暗室;
🗣️ 情景例句
He never speaks unless he is spoken to.
除非别人先对他开口，他从不先开口。
I asked him to clean it for me, but he wouldn't.
我请他帮我清理，但是他不肯。
The doctor began to operate on the boy.
医生开始给那个男孩动手术。