Polyacetylenes
多炔
🗣️ 情景例句
Sorry, that's not really what I mean. What I'd like to know is...
对不起，我真的不是那意思，我想知道的是…
What time do you think it is?
你以为现在几点？
Those flowers are lovely, too.
这些花也很漂亮啊。