He wants them
一下───once;他───he
He once lived in Zambia.───他曾在赞比亚生活过。
I met Miquela once, briefly.───我见过蜜凯拉一次，时间很短。
I've only been there once.───我只去过那里一次。
"You once let me play in your garden, " said the child. "Today you'll come with me into my garden in heaven. "───“你曾经让我在你的花园里游玩，”男骇说，“今天我就要把你带到我天国里的花园里去。”
France, long a symbol of colonialist oppression in North Africa, looked once again like the hated imperial power it had formerly been.───长久以来，法国在北非被视为殖民压迫的象征，此番再次被视为过去那个令人憎恨的皇权。
but it seems to be already well-established that dreams have once and for all left the world of unreality for the world of the laboratory.───但是有一点已经得到了很好地证明——梦已经彻底离开了非现实世界，进入了实验室。
The earth rotates once a day.
He didn't approach the front door at once.
Once again , the train was late.
He that doth most at once doth least.
Measure thrice before you cut once.