N-heptylacetylene
[建] 壬炔
🗣️ 情景例句
I thought you were proud of the work I do.
我还以为你为我所做的工作感到骄傲。
To tell you the truth that.
老实说。
I had not laughed since I became deaf.
我耳聋后就从来没有笑过。