水利: water conservancy, irrigation works...
怠工: to slacken off in one's work, to go slow (as a form of strike)...
短: short, brief, to lack, weak point, fault...
航天员: astronaut...
大队: group, a large body of, production brigade, military group...
祖籍: ancestral hometown, original domicile (and civil registration)...
喇叭: horn (automobile etc), loudspeaker, brass wind instrument, trumpet, suona...
考验: to test, to put to the test, trial, ordeal...
宣读: to read out loud to an audience, a prepared speech (e.g. to a party conference)...
心慌: to be flustered, (dialect) irregular heart-beat...