投射: to throw (a projectile), to cast (light)...
宣布: to declare, to announce, to proclaim...
铝: aluminum (chemistry)...
奏效: to show results, effective...
风采: svelte, elegant manner, graceful bearing...
后代: descendant, progeny, posterity, later ages, later generations...
打磨: polish, grind...
心病: anxiety, sore point, secret worry, mental disorder, heart disease (medicine)...
