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n (a) sudden rough blow or thrust, usu with sth pointed 捅; 刺; 戳; 猛击: a jab in the arm 刺在手臂上的一下. (b) (infml 口) injection or inoculation 注射; 打针; 接种: Have you had your cholera jabs yet? 你打霍乱预防针了吗?



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