挡: to resist, to obstruct, to hinder, to keep off, to block (a blow), to get in the way of, cover, gear (e.g. in a car's transmission)...
键: key (on a piano or computer keyboard), button (on a mouse or other device), chemical bond, linchpin...
演员: actor or actress, performer...
攻关: to storm a strategic pass, to tackle a key problem...
候选人: candidate...
恐慌: panic, panicky, panic-stricken...
老年: elderly, old age, autumn of one's years...
理: texture, grain (of wood), inner essence, intrinsic order, reason, logic, truth, science, natural science (esp. physics), to manage, to pay attention to, to run (affairs), to handle, to put in order...
