接触: 1.(交往) come into contact with; get in touch with 短语和例子保持接触 maintain contact; 接触语言环境 give sb. more exposure to the language environment; 代表团接触了各界人士。 the delegation met with people from all
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;
