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
I wonder how he is making out in his new job.
不知他新工作做得怎么样。
How long have you had this pain?
疼痛多久了？
Take it or leave it.
要不要由你。