当水位高的时候，使用者只需要往下走几个台阶就能到达井的部位；当水位低的时候，就要走好几层了。

When the water level was high, the user needed only to descend a few steps to reach it; when it was low, several levels would have to be negotiated.

youdao

据说秘密来自这口井的里面。

It's said that the secret is from inside the well.

youdao

灵魂之井的吟唱仍然继续着。

In the WELL OF SOULS the chant continues.

youdao

Second thing I want to note is, the little hash mark or the pound sign, that's identifying a comment.

我想要说的第二件事是，这个小斜杠或者是井字号，这是用来标注注释的。

麻省理工公开课 - 计算机科学及编程导论课程节选