加强: strengthen; enhance; augment; reinforce; intensify; ruggedize; energize; [数学] sharpening 短语和例子加强党和群众的联系 strengthen the party's ties with masses; 加强防御工事 strengthen defense works; 加强物价和市场管理
挡: 挡Ⅰ动词1.(拦住; 抵挡) keep off; ward off; block; resist 短语和例子挡道 block the road; get in the way; 挡风 shelter sth. from [keep out] the wind; 挡雨 keep off the rain; shelter one from the rain; 筑一道篱笆挡狗