Composition b
[化] B炸药(如中国的黑梯炸药)
🧩 词语组成解析
🗣️ 情景例句
What now?
下一步呢？
He who pays the piper, calls the tune.
谁负担费用，谁加以控制。
When she got to the shop, she bought all the things on the list.
去到商店后，她把单上所列物品全都买了。