你好!chalk 英[tʃɔːk] 美[tʃɔːk] n. 白垩; (白色或彩色的) 粉笔; v. 用粉笔写(或画); [例句]Her skin was chalk white and dry-looking.她的皮肤看上去苍白发干。shock 英[ʃɒk] 美[ʃɑːk] n. 震惊; 惊愕; 令人震惊的事; 休克; (由爆炸、地震等引起的) 剧烈震动，剧烈震荡; v. 使震惊; 使惊愕; 使气愤; 使厌恶; [例句]The extent of the violence came as a shock暴力程度令人震惊。choke 英[tʃəʊk] 美[tʃoʊk] v. (使) 窒息，哽噎; (掐住喉咙) 使停止呼吸，使窒息; (尤指感情激动而) 说不出话来，使哽咽; n. (车辆发动机的) 阻风门，阻塞门; 窒息; 哽噎; 哽噎声; 呛住的声音; [例句]The coffee was almost too hot to swallow and made him choke for a moment咖啡烫得几乎咽不下去，呛得他好一会儿喘不过气来。
吃东西噎着或喝水呛着都可以用动词 choke。例如：The fish bone in her throat madeher choke. (她喉咙中的鱼骨使她哽噎)The coffee was almost too hot to swallow and made him choke for amoment. (咖啡烫得几乎咽不下去，呛得他好一会儿喘不过气来)
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