The theory behind double-checked locking is perfect.

双重检查锁定背后的理论是完美的。

youdao

There won't be any more of those for the foreseeable future, I think as I shut the double doors behind me, carefully.

我想，再也不会有谁可以预测到将来了，我小心翼翼地把身后的双层门关上。

youdao

That was the thinking behind the Land art generator Initiative, a contest to create public art installations that double as full-scale clean energy generators.

这就是继大地艺术发电机计划(一场创建兼顾公共艺术设施和全面的清洁能源发电机的比赛)之后的想法。

youdao

Annie Vernon and Anna Bebington also moved to the semi-final after finishing second in the women's double sculls behind the Chinese crew.

BBC: SPORT | Other Sport... | Rowing | GB four power to opening victory

Only good things could lie behind double doors of such chic taupe and perfect gloss.

CNN: Flanders: Europe's best-kept design secret

He watched till it was gone, and the double gates were shut behind it.

NEWYORKER: Bullfighting