review：
1，即使按着这个理论运作，人们无非也就是多过上几年的健康生活。
even working with its grain may do no more than buy a few extra years of healthy living.
2，风险到处有，但其他药物的风险要大。
there will be always be risks, but no more than for other medicines.
now and then "偶尔，有时"
1，now and then he picked raspberries in the overgrown garden.
有时，他会跑到杂草丛生的花园里去采摘蔗莓。
2，however, boys use computers for homework and schoolwork only now and then.
然而，男孩只是偶尔使用电脑做家庭作业和其他作业。
1，我不反对朋友们偶尔在一起欢乐一下，但要有分寸，不能放荡。
I don't disagree to make fun with friends now and than,but we should to do attention.
2，他幽默的演讲使会场的气氛活跃起来，与会人员不时地爆发出笑声。参加
The facetious speech from him make the atmosphere up,and everyone who entered into the meeting bursting into laughing.作者: 英伦慢摇 时间: 2011-6-7 14:52
1，我不反对朋友们偶尔在一起欢乐一下，但要有分寸，不能放荡。
I don't disagree to make fun with friends now and then,but we should have a sense of propriety and can't be dissolute。
2，他幽默的演讲使会场的气氛活跃起来，与会人员不时地爆发出笑声。参加
His humorous speech made the atmosphere lively,and everyone who entered the meeting burst into laugh.作者: xiaotantan 时间: 2011-6-7 14:52
1，我不反对朋友们偶尔在一起欢乐一下，但要有分寸，不能放荡。
Friends get together for happy now and then,i don't oppose,but can't riot,they should know right and wrong.
2，他幽默的演讲使会场的气氛活跃起来，与会人员不时地爆发出笑声。
The atmosphere of meeting become active by his speech of humor,these people burst out laughing now and then.作者: 云野 时间: 2011-6-7 16:26
1，我不反对朋友们偶尔在一起欢乐一下，但要有分寸，不能放荡。
i am not aganist that enjoy with friends now and then,but have a sense of propriety, can't dissolute.
2，他幽默的演讲使会场的气氛活跃起来，与会人员不时地爆发出笑声
his humorous speech made the conference hall live, the people who attend the conference laugh now and then.作者: xiaomeixin 时间: 2011-6-7 17:14
1，我不反对朋友们偶尔在一起欢乐一下，但要有分寸，不能放荡。
I won't be against my friends have some entertainments now and then,but they must have a sense of propriety and can't be dissolute.
2，他幽默的演讲使会场的气氛活跃起来，与会人员不时地爆发出笑声。
His humorous speech makes the party come alive,and the people who are at the party make laugh now and then.作者: 陈秀玲 时间: 2011-6-7 17:44
1.I don't mind a little fun now and then among friends,but I draw the line at looseness.
2.His humourous speech gingered the meeting up and made the audience burst into laughter now and then .作者: 陈秀玲 时间: 2011-6-8 10:02
1.I don't oppose to have a good time with friends now and then, but have a sense of propriety, without dissipation.
2.His humorous speech made the atmosphere of the meeting actively, participants brust laughter now and then.作者: Andy-Lee 时间: 2011-6-10 15:42
1，我不反对朋友们偶尔在一起欢乐一下，但要有分寸，不能放荡。
I don't disagree that freinds gather and make happy now and then,but should know how far to go and when to stop.
2，他幽默的演讲使会场的气氛活跃起来，与会人员不时地爆发出笑声。
his humorous speech have atmosphere active,participant burst into laugh now and then.作者: LihaoLeo 时间: 2011-6-14 17:04
1，我不反对朋友们偶尔在一起欢乐一下，但要有分寸，不能放荡。
i'm not against having entertainment together with friends now and then, but it should be under control and should not be dissolute.
2，他幽默的演讲使会场的气氛活跃起来，与会人员不时地爆发出笑声。
his speech of humorous aroused active atmosphere, the participators bursted laughing now and then.
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Thank you.