Setbuf
设置缓冲
🗣️ 情景例句
get some background on the job.
了解这项工程的一些背景。
In every rank, great or small, 'Tis industry supports us all.
不论高的低的各级人士，所持的都是勤劳。
What's that in your hand?
你手里拿的是什么？