Dibutoxy
二丁氧基
🗣️ 情景例句
My computer was infected by a virus, I guess since I didn't have firewall installed.
我的电脑受到病毒感染了，我想是因为我没装防火墙。
What time does the first train to Boston leave?
第一班去波士顿的列车什么时间开出呢？
Jim, could you help me, please? I want to get some books.
吉姆，你能帮我一下吗？我想拿些书。