I rowed once around the down-stairs, avoiding the mess of timbers in the hall where the terrible accident had occurred.

我在楼下划了一圈，绕开门厅头天晚上掉下来的乱七八糟的木料。

youdao

Process your Inbox as often as you like throughout the day, but do it at least twice a day: once around noon and again at day's end.

全天你随时都可以处理你的收件箱，但是一天至少进行2次：一次为中午12点左右，另一次为一天的结束。

youdao

Land that was once at the bottom of the sea now lies around the town in wide, fertile fields; where crabs once crawled, donkeys pick their way.

曾经是海底的陆地现在成了城镇周围广阔肥沃的田野；这里曾经有过螃蟹爬行，现在则有驴子择路而行。

youdao

It seemed to be attracted by Beatrice and flew once around her head.

VOA: special.2009.05.23

But once in awhile, one of these plus twos comes in almost on axis, and it gets whipped around by the Coulombic repulsive forces.

但是偶尔一个带两个正电荷的粒子,以接近于轴的位置进入，会快速的移动到周围,由于库仑斥力的作用。

麻省理工公开课 - 固态化学导论课程节选

If it takes you 1 / 60 of a second to go around once, then you do it 60 times a second.

如果转一圈要 1 / 60 秒,那么一秒就转了60圈

耶鲁公开课 - 基础物理课程节选

Similarly, the British-era light-rail loop circling Yangon takes about three hours to ride once around, with no linking bus services into downtown.

CNN: From Burma to Myanmar: Land of rising expectations

They are camped once more around government buildings on the edge of the Kasbah.

ECONOMIST: Egypt's and Tunisia's transitions

Mysteriously, the pillars appear to have been buried, deliberately and all at once, around 8200 B.

NEWYORKER: The Sanctuary