Spermidine
亚精胺
🗣️ 情景例句
I haven't made a dent in my paperwork.
我的那些文件没怎么动。
When the storm broke, I was doing the ironing.
当火起来的时候，我在烫衣服。
And you ought to get a few large rocks to put in the tank.
还有，你应该弄到几块大点儿的岩石，放进水箱里。