Geramine
洁尔灭, 氯化烷
🗣️ 情景例句
Remember my apple pie on Thanksgiving?
记得在感恩节我做的苹果派吗？
Nothing is so certain as the unexpected.
天有不测风云，人有旦夕祸福。
Why? One difficulty is to construct the agreements.
为什么呢？困难之一是起草这些协议。