For example, one-celled animals always live in water, which helps the cell hold its shape.

比如，单细胞动物总是生活在水中，因为水有助于保持它的形态。

youdao

For example, one-celled animals always live in water, which helps the cell hold its shape.

比如，单细胞动物总是生活在水中，因为水有助于保持它的形态。

youdao