Spermidine
亚精胺
🗣️ 情景例句
Do you think we should take down the decorations?
你觉得我们应当取掉这些装饰品吗？
Make up your mind!
干脆点！
You've done very well. It's a pity you missed the sports meeting last week.
你学得不错嘛。很可惜，你错过了上周的运动会。