1.new black 流行;趨勢
例句:Green is the new black.
綠色是新的流行色
2.protect against 使...免受;抵御
例句:The UK Health Protection Agency says the best way to protect against rotavirus infection is good hygiene.
英國衛生保護局說保護抗輪狀病毒感染最好的方法是良好的衛生
。3.mortality rates 死亡率
例句:Mortality rates actually increased with age in the same birth cohort.
在相同的血統組中,死亡率實際上隨年齡的增加而增加
。4.the validity of ...的正確性;...的有效性
例句:He then volunteered to demonstrate the validity of his opinion.
接著他又主動要求證明這一看法的正確性
。