Bromcholine
[化] 溴胆碱
🗣️ 情景例句
Where do I register for classes?
我在哪儿登记我上的课？
You cannot clap with one hand.
孤掌难鸣。
Gradually the river grows wider, the banks recede,
然后河面渐渐地变宽，两岸后撤，