A tower was once built with small grains of sand.

有一个人用一粒一粒的沙子造成一一个大塔。

youdao

Once built, the string is then written out as a Notes stream to the "results" field in the search form.

构建后，该字符串以notes流形式写出到搜索表单的“results”字段。

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Once built, they attached the new hapten molecules to carrier proteins, mixed them with adjuvant, injected the results into mice and waited.

在半抗原成形后，他们将这些新的半抗原分子附到蛋白质载体上并与辅助剂混合再注射到小鼠身上等待结果。

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Yet once he had enough paths built to welcome visitors, no one seemed interested in his "bat cave."

VOA: special.2009.12.07

These are stupid questions, because once you understand what they're asking, the answer is just built in. It follows trivially.

这是些很愚蠢的问题,因为一旦你明白了他们的问题,答案就在其中,一切简单明了

耶鲁公开课 - 死亡课程节选

But once it was built, family members of the dead, Vietnam veterans, and the general public accepted its beauty and strong emotion.

VOA: special.2009.05.06

Among many who once built big passenger planes, only Boeing and Airbus Industrie still do.

FORBES: Perspectives

With no fuel costs, once built, the longer a wind turbine operates the more cost effective it becomes.

FORBES: Is The Answer, My Friend, Blowing In The Wind?

Once built, it will be the biggest wind farm in the southern hemisphere.

CNN: story.codringtonwindfarm.jpg