Composition b
[化] B炸药(如中国的黑梯炸药)
🧩 词语组成解析
🗣️ 情景例句
I think I've got them all, but I'm not sure.
我想我都已经拍齐了， 但我不能肯定。
There are 16 participants here today.
今天有16位参会者。
I'd like to pick sea shells this afternoon.
今天下午我想去捡贝壳。