Correct

择不开

/ zé bù kāi /
Strokes

Definition

impossible to separate/impossible to disentangle/cannot take time out

Example

As a Verb

be unable to disentangle/undo/unravel

1
kāi
zhè
tuán
luànxiàn
乱线

be unable to unravel/untie/unfasten/disentangle the tangled threads

As a Verb

cannot get away from; be unable to absent/extricate oneself

2
diǎnr  
一点儿
gōng
工夫
kāi

not have a moment to spare; be fully occupied/engaged