Composition b
[化] B炸药(如中国的黑梯炸药)
🧩 词语组成解析
🗣️ 情景例句
We need to bring a flashlight.
我们需要带一个手电筒。
When the clock strikes twelve at midnight.
当午夜十二点的钟声敲响时。
Ann ran to the door, and found Li Lei outside.
安跑到门口，看见李磊在门外。