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- He doubled his slice of bread to make a sandwich. 他将一片面包对摺做成三明治
- He doubled up when he was struck in the belly. 他的肚子被击中时，他痛得蹲了下来。
- colck doubled 双倍时钟
- As a result, daily output has doubled. 结果日产量翻了一番。
- The company doubled its size in nine years. 9年来这家公司的规模扩大了一倍。
- He doubled back by another road and surprised us. 他从另一条路折了回来，吓了我们一跳。
- The fugitive doubled back to confound the pursuers. 逃亡者用曲折迂回的办法来迷惑追踪者
- In experimental plots the yield has been doubled. 在试验田里，产量已(被)提高了一倍。
- The old couple doubled up with laughter. 老两口笑得直不起腰来。
- The opening formed by such a doubled line. 圆孔这样的折叠的绳子所形成的圈
- They clock in at this time every day. 他们每天在这个时候上班。
- Mary, who played the part of the dancer, doubled as her mother. 扮演舞蹈家的玛丽同时兼演她的妈妈。
- He started running towards the street but suddenly doubled back to his room. 他开始往街上跑，但突然又折回自己的房间。
- On her way back from the fields, she suddenly doubled over with labour pains. 从地里回来时，她突然一阵阵痛，不由得蹲了下去。
- My income was doubled yesterday. 昨天我的收入加倍。
- He doubled the rubber band about the cards. 他把橡皮筋在卡片上绕了两圈。
- Her baby doubled its weight in a year. 她的婴儿在一年内体重增加了一倍。
- John doubled his fists in anger. 约翰愤怒地握紧拳头。
- Mary and Nancy and John and Bill doubled. 玛丽和南希同约翰和比尔双双赴约(或相偕出游)。
- She doubled as secretary and maid in the play. 她在剧中兼演秘书和女佣。
