Do duty for...
当...用
🧩 词语组成解析
do
[du]
aux. 构成疑问句和否定句;代替动词;用于加强语气;
vt. 做;干;进行;从事;
vi. 表现;进展;引起;行过;
n. 社交聚会;社交活动;宴会;
🗣️ 情景例句
Ah! I'll read it to you.
啊！ 我来读给你听听。
She had to keep out of sight when her husband was holding a meet.
她在丈夫举行会议时只得避不露面。
What does that do?
这有什么用处呢？