keep one造句
Keep one as a master copy for your own reference and circulate the others.
一盘留作母带自用，其余的都分发出去。
The frozen snow was so slippery that it was hard to
keep one's feet.
冰雪溜滑,人们很难站稳.
It is difficult to
keep one's balance on an icy pavement.
人行道上结了冰,要想不倒可不容易.