🧩 词语组成解析
a. 受委任的, 现役的, 受任命的\\n[法] 经授权的, 委任的, 受任命的
officer
['ɔfɪsɚ]
n. 军官，警官;高级职员;公务员;船长;
v. 指挥;统率;管理;配置军官;
🗣️ 情景例句
Richard and Marilyn bought it for me for my birthday.
这是Richard和Marilyn送给我的生日礼物。
How did you sign the letter?Did you write, sincerely yours?
你怎么签名信的?你写了"真诚地你的"？
Many firms, for instance, have great difficulty in obtaining technical or scientific books from libraries
比如，很多公司向图书馆借阅科技书籍时感到很困难，