Good revision should give you confidence, but if you are still worried, it's not harmful to follow some special customs.
好的复习能给你信心，但如果你还担心，不妨遵循一些特定的习俗。
He went on, "The enzyme is not harmful to humans or animals, and it is friendly to the environment."
他接着说，“这种酶对人类和动物没有伤害，而且对环境是友好的。”
In most cases, snoring is not harmful.
多数情况下，打鼾没什么害处。
"They're not harmful pathogens," she says.
“它们不是有害的病原体，”她说到。
Adversities is life can be frightening but not harmful.
生命的逆境或许会使我们恐惧，但它无法伤害我们。
As I have mentioned before many bacteria are not harmful.
我以前也说过很多并非有害细菌。
The good news is that most oral bacteria are not harmful.
好消息是，多数口腔细菌并非有害。
Additives are not harmful to heath if people don't eat too many.
如果人们不吃太多食品添加剂，就不会对健康有害。
However, industry experts insist that the levels are not harmful.
但饮料界人士坚持认为，杀虫剂的含量是无害的。
No low aromatic content, ensuring not harmful to skin and no unpleasant smell.
不含芳香烃，确保不损皮肤及无刺激性气味。
Occasionally, this tablet shell may be seen in the stool. This is not harmful.
有时您会在排出的粪便中发现这种药片，这是正常现象。
You should not be so fearful of those small flying insects. They are not harmful.
你不必如此害怕那些小飞虫，它们是无害的。
However, following rules are basically not harmful at all and can be safely used.
以下定律不含任何毒副成份，基本有益无害，可以放心使用。
The fruit injury test shows that the above treating condition is not harmful to the fresh fruits.
果实损伤测定试验表明，在此处理条件下，对芦柑鲜果不会造成损害。
Like most hardware, treacherous computing hardware can be used for purposes which are not harmful.
像大多数硬盘，危险的计算的硬盘可以被用在没有伤害的目的上。
So the titration end could be easily identified, the procedure is not harmful to environments and operators.
滴定是在水溶液中进行的，终点易于判定。
Insomnia is not harmful if it is only occasional; the body is readily restored by a few hours of extra sleep.
偶尔的失眠对人体并没有害处，人们只需要额外的几小时睡眠就可以恢复过来。
"We believe that there are cultural practices that are not harmful to women's integrity and rights," says Koster.
“我们认为，这种文化习俗不是有害于妇女的完整性和权利，”科斯特说。
This product doesn't contain phosphide and has good biodegradation. It is not harmful for human and environment.
该产品不含磷、生物降解性好，是一种对人体无毒、对环境无害的环保型产品。
It's not harmful to plug your phone in before the battery is drained -in fact, it may be better for your battery.
在电量耗尽之前就插上充电器其实并没有什么害处——事实上，这可能对你的电池更好。
It's not harmful to plug your phone in before the battery is drained - in fact, it may be better for your battery.
在电量耗尽之前就插上充电器其实并没有什么害处处——事实上，这可能对你的电池更好。
Dietary protein restriction is simple, relatively inexpensive, and usually not harmful and has the ring of authority.
限制蛋白质摄取的方法是简单的，也相对地价格低廉，通常来说不造成伤害，并且有职权集团做支持。
So I think evidence is accumulating that coffee is at least not harmful and possibly beneficial for some health conditions.
因此我认为，有更多的证据显示，咖啡至少没有害处，还可能对健康有好处。
"But for healthy people, it appears that drinking coffee and tea is not harmful and it may even offer some benefits," she says.
“但是对健康人们来说，看起来喝咖啡和茶是无害的，并且它甚至提供一些益处，”她说。
So far, the tests have indicated that the virus is not harmful to other organisms, including humans, but more testing is needed.
到目前为止，试验证明这种病毒对其它包括人类在内的有机生物没有危害，但还需要对此进行更多的检测。
Indeed, it is very unwise for college students to keep distance from physical exercise because physical exercise is not harmful but good to them.
事实上，这是非常不明智的大学生保持距离，因为从体育锻炼体育锻炼是不会对人体有害，但对他们好。
For this reason, the U. S. Environmental Protection Agency is demanding evidence that these kinds of products are not harmful to the environment.
由于存在上述风险，美国环保局要求生产商出示证据证明这类产品不会对环境造成损害。
Exquisitely lovely. Reren like. More material is not harmful substances, Health. allow our children to the physical objects would not be harmful pollution.
精美可爱。惹人喜欢。材料更是无害物质，卫生。让我们的孩子的身体不会受到有害物体的污染。
Exquisitely lovely. Reren like. More material is not harmful substances, Health. allow our children to the physical objects would not be harmful pollution.
精美可爱。惹人喜欢。材料更是无害物质，卫生。让我们的孩子的身体不会受到有害物体的污染。
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