Darpa
[计] 美国国防部高级研究计划局
🗣️ 情景例句
You hold on to them so there won't be a problem later.
你来保管， 免得等一下又出问题了。
I can't express myself very well in English.
我不能很好地用英语表达自己。
Have you tried to borrow money from a bank?
你是否试过向银行借钱呢？