sloth|sloths

我们看到一只树懒在树枝上慢慢地移动。

We saw a ___sloth moving slowly along the tree branch.

树懒每天花大部分时间倒挂在树上。

___Sloths spend most of their day hanging upside down from trees.

他的懒惰导致项目延期了两个月。

His ___sloth caused the project to be delayed for two months.