It's not a good idea to spend too much time on it.

在这上面花太多时间并不好。

youdao

It's not a good idea.

这不是一个好主意。

youdao

It's not a good idea to bath baby every day.

她说：“每天给宝宝洗澡并不好。”

youdao

Obviously, the amounts that are in cigarettes are not enough that people are dropping dead of cyanide poisoning, but still it's not a good idea you definitely want to minimize your exposure.

显然，香烟中的氰化物含量不足,以使人中毒而死，但这毕竟不是一个好主意,你绝对会想要将接触氰化物的机会减到最少。

麻省理工公开课 - 化学原理课程节选

And you know it's not the necessarily a good idea to do it, you start with "The thing is".

你心里清楚这么做并不一定是个好主意，你就可以用“The thing is”来回答他们。

The thing is 课堂 - SpeakingMax英语口语达人

But if you have enough energy, or you have too much energy stored in your body and body fat, then the brownie's not such a good idea because it provides too much, and of course not nearly the nutrients that the broccoli would provide.

但如果你的身体能量充沛,或者能量过多,体态肥胖,那么布朗尼提供过多热量,不是首选,提供的营养素也不及花椰菜

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Usually, it's not a good idea to take profits, since you accelerate your tax bills that way.

FORBES: Beat the Treasury

You can buy a contract with only 10% or 15% down, but it's not a good idea.

FORBES: Magazine Article

"It's not a good idea, " says Dr Daniel Frattarelli, chair of the American Academy of Pediatrics committee on drugs.

BBC: Should parents drug babies on long flights?