slim adj. 苗条的，纤细的
例句：Mary was born with a slim figure.
slot n. 缝，狭槽
例句：Pick up the receiver and deposit a coin in the slot.
slum n. 贫民窟
例句：These children came from a slum area.
plot n. 阴谋，（小说的）情节
例句：The reporter was killed because she tried to expose a plot.
pump n. 泵，抽水机
例句：At the farm there was a pump for drawing water from a well.