Polyketide
聚酮化合物
🗣️ 情景例句
Just because the other kids have motor scooters is no reason for you to stop riding your bike to school.
只是因为其他的孩子都有电单车上学，不足以成为你不骑车上学的理由。
Men love to hear well of themselves.
阿谀奉承话，人们皆爱听。
7 p.m. Will you be free then?
晚上7点。那时你有空吗？