Once begun, feeding should never stop during these lean months.

一旦开始，贫苦的日子里也不应该停止喂养。

youdao

It was awfully hard for Heidi to stop crying when she had once begun, for she cried so seldom.

小海蒂很少哭，但一旦她开始哭，就很难从悲伤中恢复过来。

youdao

The research is so designed that once begun nothing can be done to change it.

这项研究设计得如此好以致一旦开始任何事都不可能改变它。

youdao

She always liked to finish a thing when she had once begun it.

NPR: Excerpt: 'Five Children and It'

Fyodorov had at once begun reading, from page 26.

NEWYORKER: Among Animals and Plants

It is interesting that almost at the same time as the dinner the president's people once again begun warning of doom.

WSJ: The Anti-Confidence Man