Dithioacetals
二硫缩醛
🗣️ 情景例句
and I have interviews with twenty-six applicants.
而要面谈的申请人有二十六位。
What were you doing at about 4 o'clock yesterday afternoon?
你昨天下午在大约4点钟正在做什么？
Letters will cost a little more, but they will certainly travel faster.
这样会稍微多花点钱，但肯定是快得多了。