Chekenon
[医] 恰凯农(南美丁香叶中的一种结晶性成分)
🗣️ 情景例句
I happened to meet her on the bus.
我凑巧在公共汽车上碰见她。
Please make sure that the goods be protected from moisture.
请保证货物不受潮。
It's a pleasure to meet you. Can I take those boxes for you?
很高兴认识您。我能帮您拿那些箱子吗？