用法:
1 [I, Ipr] ~ (with sth) act or have an effect on each other 相互作用; 相互影响:
chemicals that interact to form a new compound 相互作用形成新化合物的化学物质 *
ideas that interact 相互影响的想法.

用法:
2 [I, Ipr] ~ (with sb) (of people) act together or co-operatively, esp so as to communicate with each other （指人）一起活动或互相合作（尤指为互相联系）:
a sociologist studying the complex way in which people interact (with each other) at parties 研究人们在聚会中互相交往的复杂方式的社会学家.

• that(those)
• that(what)
• that(which)
• that(who)
• that(why)
• the best of(the most of)
• the big idea(the good word)
• the day that(the day when)
• the dead(the deceased)
• the majority of(the great part of)
• the manner(the way)
• the moment (that)(the moment (when))
• the next day(the other day)
• the person responsible(the responsible person)
• the pipe of peace(the piping time of peace)
• the reason that(the reason why)
• the same… as(the same… that)
• the time that(the time when)
• the way(this way)
• then(and then)
• then(therefore)
• there is(there are)
• there you are(there you go)
• these kind of things(this kind of thing (s))
• think about(think of)