Menudefault
[计] DOS内部命令
🗣️ 情景例句
My company is a member of TOPS.
我的公司也是优秀老人协会的会员。
It's not too heavy,but I don't know the exact weight.
它不是太重的，但是我不知道准确的重量。
If they knew how difficult it was to drill through the hard rock, they would lose heart.
如果他们知道了钻透那坚硬的岩石有多么困难，他们会丧失信心的。