Cyclohexyl
[建] 环己基
🗣️ 情景例句
Do you remember
你记得
Someone is working in the manhole.
有人在
when she remembered that she had gone shopping after the home help had left and she knew that she had turned both keys in their locks,
但突然记起来了，帮手是在她出去买东西之前走的，她还记得曾用了两把钥匙把大门锁上了。