距离: 1.(相隔的长度) distance; range; gap; space; spacing; separation 短语和例子保持一定距离 keep a certain distance; 扩大距离 increase the distance; widen the gap; 两座房屋之间的距离 the distance between the two houses; 缩小
键: 名词1.[机械工程] (使轴与齿轮、皮带轮等连接并固定在一起的零件) key 短语和例子轴键 shaft key2.[书面语] (插门的金属棍子) bolt (of a door)3.(琴、打字机或其他机器上, 使用时按动的部分) key (of a typewriter, piano, etc.) 短语和例子按钢琴的键 press the keys of a piano;
