Hair is dead, and once the main shaft of the hair follicle is extruded, expired biomass can't be tinted or bleached by psychological trauma or fear.

头发是死的，一旦其毛囊主轴受到挤压，其生物物质由于心理创伤或恐惧不能着色或漂白。

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This technology was once controversial (for patent enforcement issues) but has become an accepted format since all patents have expired.

这种技术曾有争议(因专利执行问题)但当所有专利过期后已经变成了一种被接受的格式。

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If the password is expired for the user, it prompts the user to change the password and then allows the user to log in once the password is successfully changed.

如果用户的密码已经过期，它提示用户修改密码，在成功地修改密码之后，允许用户登录。

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Players could sign with any team once their contract expired, as sports economist Andrew Zimbalist explains.

VOA: special.2010.07.26

But Mr Creane said once the policies expired, it was impossible to arrange cover for his wife.

BBC: Natalie Creane in hospital

Once the rebates expired, housing collapsed, and auto sales are in decline again.

FORBES: Lots Of Cash Not Being Spent Will Choke Off The Recovery

Once patents have expired, these companies should not be able to bully smaller generic firms and tie up the creation of generic drugs with regulatory and legal appeals.

FORBES: FDA Stands Firm On Generics