*on·to/`ɑntə; ˈɒntə;before vowels 在母音前`ɑnt; ˈɒntʊ/ prep 1 used with verbs showing movement to mean on a particular place 到［在］…上: The cat jumped onto the kitchen table. 那只猫跳到了厨台上。 2 be onto sbinformal to know who did something wrong or illegal 【非正式】 知道某人做错事［违法］: He knows we're onto him. 他知道我们抓住了他的把柄。 3 be onto somethinginformal to have an idea or information that may be very useful and important 【非正式】 掌握〔有用、重要的〕资料: I think you may be onto something. 我想你已经有点头绪了。