Polyketide
聚酮化合物
🗣️ 情景例句
I always get nervous in her company.
跟她在一起，我老是紧张。
Air China has a flight leaving at 9:25.
中国航空公司有一班飞机，9点28分起飞。
Even if you travel in ideal weather, sea journeys take a long time.
即使风平浪静，坐船旅行也要占用很长时间。