口罩: mask (surgical etc)...
画: to draw, picture, painting...
挽回: to retrieve, to redeem...
感慨: to sigh with sorrow, regret etc, rueful, deeply moved...
浩劫: calamity, catastrophe, apocalypse...
骑车: to ride a bike (motorbike or bicycle)...
杠铃: barbell...
浓: concentrated, dense, strong (smell etc)...
内行: expert, adept, experienced, an expert, a professional...
贿赂: to bribe, a bribe...