词汇	man on the firing line
释义	man on the firing line 投手
随便看	means of instruction means of international payment means of international settlement means of intervention means of intervention for maintenance means of investigation means of jack-up means of knowledge means of labor Means of Labor means of labour Means of Laws means of least square error means of life means of light signaling means of light signalling Means of limiting or regulating means of line communication means of liquidity means of livelihood means of living means of logistic command means of mail means of main component analysis means of manifesting