Composition b
[化] B炸药(如中国的黑梯炸药)
🧩 词语组成解析
🗣️ 情景例句
He told me he was very impressed with you.
他告诉我他对你印象很好。
I'll call the roll before class.
课前我要点名。
The curious thing was that the lake was not marked on the map.
奇怪的是那个湖没有在地图上标出。