It is suggested that sunscreen be applied every one to two hours in a sunny day.

建议在晴朗天气里每隔一到两个小时涂抹防晒霜。

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It is suggested that 5,000-6,000 years ago people in the Middle East and North Africa started to allot specific lengths of time to tasks.

据说，在5000至6000年前，中东和北非的人们开始分配特定时间段来完成任务。

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It is suggested that javelle water is an effective, economic and technologic feasible oxidation agent.

有人提出，标枪水是一种有效，经济和技术可行的氧化剂。

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It is suggested that the selenium also "protects" the viruses against similar genetic changes caused by cell damage.

BBC: Poor diet 'boosts virus power'

He sounds prickly when it is suggested that Khaled Meshal, Hamas's overall leader, who resides in Syria, is more flexible.

ECONOMIST: The prickly defiance of Mahmoud Zahhar

The FSA requires call recordings to be kept for six months, but it is suggested that calls be retained for five years.

FORBES: All Phone Calls With Brokers In The UK Now Recorded; Coming Soon To Europe and America