题目内容
adj. happening or done sometimes but not often
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v. to treat sb. in a cruel and unfair way, especially by not giving them the same freedom, rights, etc.. as other people
adj. expecting bad things to happen or sth. not to be successful;
n. very small drops of water that are present in the air, on a surface or in a substance; n.a type of solid, liquid or gas that has particular qualities
v. to fail to see or notice sth.; to see sth. wrong or bad but decide to ignore it
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