Tpgc
[化] 程序升溫氣相色譜法
??? 情景例句
Can you speak English?
你會(huì)講英語(yǔ)嗎？
He preaches best who lives best.
言教不如身教。
We're going to leave at about seven thirty next Monday morning.
我們打算下星期一早上7：30 左右出發(fā)。