Additive reaction
[化] 加成反应
🧩 词语组成解析
🗣️ 情景例句
The price for one person for a ten-day tour is only $ 1088, which includes round-trip airfare.
十日游每人只要1088美元。这个费用包括来回机票。
One cannot put back the clock.
光阴一去不复返。
It's about four hundred yards down this street.
城堡就在这条街上，（离这儿）400码左右。