The sun's rays do not burn until brought to a focus.

集中全部的精力，完成手边的任务。太阳光只有在聚焦的时候才会燃烧。

youdao

The sun's rays do not burn until brought to a focus.

就像太阳光线只有聚焦到一个焦点才会燃烧。

youdao

The sun's rays do not burn until brought to a focus.

就像太阳光线只有聚焦到一个焦点才会燃烧。

youdao