Point number
[计] 数据标记序号
🧩 词语组成解析
🗣️ 情景例句
He is not up to the job.
他不能胜任这个工作。
That's all for today.
今天就到这儿了。
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。