Circuit usage
[电] 电路占用率
🧩 词语组成解析
🗣️ 情景例句
It's tough getting an O.K. from the boss.
很难从老板那听到声“同意”。
What color is your book?
你的书是什么颜色？
and so the tools of long ago have remained when even the bones of the men who made them have disappeared without trace.
因此，尽管制造这些工具的人的骨头早已荡然无存，但远古时代的石头工具却保存了下来。