预: Ⅰ副词(预先; 事先) in advance; beforehand 短语和例子预约 make an appointment; 预祝成功 wish sb. success; 他们将预付一百三十法郎。 they will pay a hundred and thirty francs in advance. 勿谓言之不预。 do not say that we haven't
同步: synchronization; synchronism; cogradient; synchro 短语和例子载波同步 carrier synchronization; 该影片画面与声音不同步。 the film does not synchronize with sound.; 同步齿轮 synchromesh gear; synchronizing gear; 同步电动
