Superfractionation
超精馏(作用)
🗣️ 情景例句
to ask Dad to sign as a guarantor.
请爸爸当担保人为我签字。
Where were you during the month of April last year?
去年四月份你在哪里？
On Wednesday evening, we went to the Town Hall.
星期三的晚上，我们去了市政厅。