keep one hope 留一个
keep one informed about something 使人们了解 ; 是某人了解
Keep one floor 跟上一层楼
keep one eye on 花部分精力照管
keep one&apos 保持镇静 ; 遵守诺言
keep one as your pet 收留一只作为宠物
I wear one wig to travel and keep one style.
我戴着一顶假发去旅行，保持一种发型。
You can keep one of the photos. Either of them—whichever you like.
你可以保留一张照片。两张里任选一张—拣你喜欢的。
It takes many registers to keep one line moving quickly, and some stores can't afford the space or manpower.
要保持一条队伍的快速运转，需要很多的收银机，而且有些商店负担不起空间和人力。
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