Spermidine
亚精胺
🗣️ 情景例句
A red sky at night indicates fine weather the following day.
晚上天边红预示着明早天气好。
I'm sorry to hear that.
听到这个消息我感到遗憾。
I wrote: Best wishes for Teachers' Day!
我写道：“谨致以教师节的良好祝愿！”