Pentachlorization
五氯化作用
🗣️ 情景例句
You don't know up from down.
你黑白不分。
You can't always get what you want.
天不从人愿。
Don't you think it necessary to have a close study of the contract to avoid anything missing?
你不觉得应该仔细检查一下合同，以免遗漏什么吗？