a small, soft creature, like a snail without a shell, that moves very slowly and often eats garden plants 缓步虫；蛞蝓 
- (informal)
a small amount of a strong alcoholic drink 少量，一小杯（烈性酒） - (especially North American English, informal)
a bullet 子弹 - (North American English, informal)
a piece of metal like a coin in shape used to get things from machines, etc., sometimes illegally 硬币形金属片，假硬币（有时用以从自动售货机中骗取东西）
Word Originnoun late Middle English (in the sense ‘sluggard’): probably of Scandinavian origin; compare with Norwegian dialect slugg ‘large heavy body’. Sense 1 dates from the early 18th cent.