Social investigations
[经] 社会调查
🧩 词语组成解析
n. （正式的）调查( investigation的复数形式 ); 侦查; 科学研究; 学术研究
🗣️ 情景例句
Try putting him across your lap on his stomach.
试试让他趴着睡在你大腿上。
Children enter primary school at the age of 7.
孩子们7岁进小学。
I'd appreciate your kind consideration in the coming negotiation.
洽谈中请你们多加关照。