parents pl ⇒ 她小时候,双亲就去世了。 Tā xiǎoshíhou, shuāngqīn jiù qùshì le. → When she was young, both her parents died.

have both ... and ... ⇒ 智勇双全 zhì yǒng shuāngquán → be both wise and brave

double entendre

double ⇒ 他是语言学和社会学双料博士。 Tā shì yǔyánxué hé shèhuìxué shuāngliào bóshì. → He's got two PhDs — one in linguistics and the other in sociology.

both sides pl

parallel bars pl

bilateral

double

the weekend

twins pl

kill two birds with one stone

work in parallel ⇒ 治疗和锻炼双管齐下,他很快就会恢复健康。 Zhìliáo hé duànliàn shuāng guǎn qí xià, tā hěn kuài jiù huì huīfù jiànkāng. → With medical treatment and exercise working in parallel, he will quickly recover.