发愤图强: to be strongly determined to succeed (idiom)...
直升机: helicopter...
测算: to take measurements and calculate...
得力: able, capable, competent, efficient...
传播: to disseminate, to propagate, to spread...
王牌: trump card...
这就是说: in other words, that is to say...
巢穴: lair, nest, den, hideout...
导向: to be oriented towards, orientation...
保管: to hold in safekeeping, to have in one's care, to guarantee, certainly, surely, custodian, curator...
