伺隙

bù yào sì xì táo pǎo

不要伺隙逃跑

don't wait for an opportunity to escape

yīng gāi sì xì jìn gōng

应该伺隙进攻

should wait for a chance to attack

bù néng sì xì yuè yù

不能伺隙越狱

can not wait for an opportunity to break prison