Methyloic
含有羧基的
🗣️ 情景例句
Sorry to hear that, Lillian.
很遗憾听到这个， Lillian。
I will be starting holidays in May.
我将在五月份度假。
My plane leaves at seven, so I think we'll take a taxi.
飞机7:00起飞，因此我想我们得乘出租车去。