通讯录

tōng xùn lù address book; directory

怎么

zěn me how?; what?; why?

zěn me variant of 怎麼|怎么[zen3 me5]

防

fáng to protect; to defend; to guard against; to prevent

爆

bào to explode or burst; to quick fry or quick boil

最

zuì old variant of 最[zui4]

zuì variant of 最[zui4]

zuì most; the most; -est (superlative suffix)

有效

yǒu xiào effective; in effect; valid

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