Polylactide
聚交酯
🗣️ 情景例句
The course I took was above me.
我上的这门课太难了。
On the desk.
在桌上。
Well, we can't take Polly with us. Could you look after her for me while we're away?
嗯，我们不带波利去。我们不在这里时，您能帮我照料它吗？