pull in test牵: lead along; pull入: enter同步: synchronization; synchronism ...试验: experiment; test; trial牵入同步: fall in step; lock-in synchronism; pull in step; pulling in step; pulling into synchronism; pullingintostep下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:牵入同步试验,即可在微信中查询翻译