expose sth to sth

leave sth expose to还是leave sth exposed to? prefer sth to sth prefer sth.to sth. attach sth to sth prefer sth to sth造句 admit sth / admit to sth need sth to do sth approach to sth /doing sth use sth to do sth stick sth to sth造句 subscribe sth.to sth.意思 use sth doing sth还是use sth to do sth