be onto

1 处于有利地位

advantage laugh gain the upper hand get the upper hand in the box seat be in the catbird seat have the upper hand

2 发现

aware strike discovery detection find identify spot discover sight detect trace unlock uncover spy penetrate unearth suss disinter dig out of alight on alight upon pick up come across get at turn up dig up dig out

3 了解

acquainted tuned in knowledge fix understanding insight engagement grip savvy acquaintance acquaintanceship see know understand inform scope initiate induct acquaint discern familiarize account for work out relate to keep up with get at be in touch keep in touch catch up on get in on get the picture keep in touch with be in touch with be in on

4 向某人抱怨

have a bone to pick with

5 掌握

firm tuned in command know master absorb ordain have at your fingertips

6 询问

questioning interrogative query enquiry ask quiz enquire interrogate