HSK V7-9
Correct

伺机

/ sìjī / 
Strokes

Definition

to wait for an opportunity/to watch for one's chance

Example

As a Verb
watch/wait for a chance/an opportunity
1
Sìjī
伺机
fǎnpū
反扑

wait for an opportune moment to stage a comeback

2
Sìjīérdòng
伺机而动

wait for an opportune moment to go into action