He turns around and watches the crack split the blackboard in two.

他转过身去，看着裂缝把黑板分成两半。

youdao

Dry nails crack and split more easily than nails that are well hydrated (well-moisturized).

比使成水化合物得好的钉子更容易地的干钉子裂缝和劈开。

youdao

Dry, brittle nails that frequently crack or split have been linked to thyroid disease.

干、脆甲症常表现指甲裂开或劈开，与甲状腺疾病有关。

youdao

The title, Fissure, can refer to a crack in a rock, the split between the two hemispheres of the brain and the separation of two people.

BBC: Theatre director seeks change of scenery

She knew that if she did her life would split open and she would slip through the crack.

NEWYORKER: Temporary