slimadj.苗条的；薄的Theyoungwomanistalland?slim.那个年轻的女子身材苗条修长。形容人身材苗条或物体薄。aslimbook?一本薄薄的书

n.事实(可数)；现实(不可数)in?fact?=asamatterof?fact事实上factAsamatteroffact,hewaslying.事实上他当时在说谎。Itsa?well-knownfact?thatdogshavegoodsenseofsmell.众所周知，狗的嗅觉非常灵敏。

n.人口haveapopul