在…的时候;

Viability of the virus appears very difficult to assess at the time of production.
在生产时,病毒的活力很难测定.
来源:词典精选例句The presence of a nodular liver at the time of examination may be revealing.
检查时肝脏的结节可能有启示性.
来源:词典精选例句Her defence was that she was somewhere completely different at the time of the crime.
她的辩词是案发时她根本就不在现场。
来源:《牛津高阶英汉双解词典》The book has to be a snapshot of the situation at the time of writing.
本书在编写时只能是对这种情况的简要反应.
来源:词典精选例句为了减轻罪行,辩护律师说他的当事人在袭击人的时候精神极度压抑。
来源:《牛津高阶英汉双解词典》At the time of sale, the obviously sick and unthrifty animals are usually excluded.
在出售时, 剔除明显的病和僵牛.
来源:词典精选例句The visitor can ponder over the boomerangs used by aborigines at the time of Cook.
来访者可以琢磨琢磨土著人在库克时期用的回飞镖.
来源:《简明英汉词典》
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