Pipecoline
2-甲基哌啶
🗣️ 情景例句
If you need any help, I'll be ust over here.
如果你需要任何帮助，我都随时待命。
We'll have to check these rates against those charged by other suppliers.
我们必须核查一下由其他供应商提供的费率。
But I'm worried about his Chinese.He may fall behind the other students when he comes back.
但我担心他的中文。等他回来后，他可能会落到其他同学后面。