a group of soldiers or workers can only fight or function effectively if they have been well fed
给养充足的士兵(或工人)才能很好地战斗(或工作)。 [ORIGIN translating French
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c’est la soupe qui fait le soldat , a maxim of Napoleon.]on a full (或<Bold>an empty</Bold>)<Bold>stomach</Bold> after having eaten (or having not eaten) 饱(或空)着肚子
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I think better on a full stomach .我吃饱了才能更好地思考。