他现在是在顺着海滨走，一路走，一路极其注意地察看最细微的迹象，他自认为在某些岩石上可追踪到人工凿出的记号。

Keeping along the shore, and examining the smallest object with serious attention, he thought he could trace, on certain rocks, marks made by the hand of man.

youdao

注意， begin() 方法将删除所有的记号，以便在构建之前清除问题列表。

Note that the begin() method removes all the markers to clean the problem list before a build.

youdao

做个记号，以后再复习的时候就多加注意，同时也相当于给自己标记了复习重点。

Make a mark, the attention is added more when be being reviewed again later, also was equivalent to labelling to oneself at the same time review a focal point.

youdao