Correct

巧于

/ qiǎo yú / 
Strokes

Example

As a Verb

be good/expert at; be a good hand at

1
Qiǎo
巧
yú
于
yùnchóu
运筹

play one's cards well/right

2
Qiǎo
巧
yú
于
cílìng
辞令

be handy with words