下令: to give an order, to command...
打捞: to salvage, to dredge, to fish out (person or object from the sea)...
奋勇: dauntless, to summon up courage and determination, using extreme force of will...
大有可为: with great prospects for the future (idiom); well worth doing...
成语: Chinese set expression, typically of 4 characters, often alluding to a story or historical quotation, idiom, proverb, saying, adage...
首都: capital (city)...
是: is, are, am, yes, to be...
无动于衷: aloof, indifferent, unconcerned...
圈子: circle, ring, (social) circle...
不慎: incautious, inattentive...