垫: Ⅰ动词1.(用东西支、铺或衬, 使加高、加厚或平正) put sth. under sth. else to raise it or make it level; fill up; pad 短语和例子垫路 repair a road by filling the holes; 桌子腿底下垫点纸就平了。 put a wad of paper under the leg of
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