| 对于 | 
duì yú | 
regarding; as far as (sth) is concerned; with regard to | 
| 对 | 
duì | 
right; correct / towards; at; for / concerning; regarding / to treat (sb a certain way) / to face / (bound form) opposite; facing; matching / to match together; to adjust / to fit; to suit / to answer; to reply / to add; to pour in (a fluid) / to check; to compare / classifier: couple; pair | 
|  于 | 
Yú | 
surname Yu | 
|  于 | 
yú | 
to go / to take / sentence-final interrogative particle / variant of 于 | 
|  于 | 
yú | 
(of time or place) in; at; on / (indicating any indirect relation) to; toward; vis-à-vis; with regard to; for / (indicating a source) from; out of / (used in comparison) than / (used in the passive voice) by |