有害

Bactrocera dorsalis,as oriental fruit fly,is a serious quarantine pest of fruits in tropical and subtropical countries.

桔小实蝇是直接危害果蔬生产并对出口贸易形成重要影响的有害生物群，口岸检疫对其鉴定依赖形态观察。

Avoid malcontents and pessimists. They dray you down and contribute nothing.

避免结交不满意者和悲观者，他们对你有害无益。

Avoid malcontents and pessimists. They dray you down and conpibute nothing.

避免结交不满意者和悲观者，他们对你有害无益。

Before it is possible to drill this deep hole, scientists will have to overcome a number of problems.

但是，还有一种更加隐蔽有害的污染，它专门影响城镇地区，侵袭我们的日常生活，那就是噪音。

Thus, it's impossible to prove that this drug is harmful.

因此，不可能证明这种药物是有害的。

Drunkenness is harmful to our health.

醉酒对我们的身体有害。

For your home's exterior, you want to be sure your new coat of paint can survive hot summers and cold winters without blistering, cracking or peeling, and that it will properly seal your home's interior from moisture, mildew, dry rot, termites and other damaging environmental factors.

您家的墙面，你想你一定能新衣油漆炎热的夏天和寒冷的冬天没有生存起泡、开裂或脱落，并能妥善密封家从室内湿度、霉变、腐干、白蚁和其他有害环境因素。

The use of the dry-cleaning detergent is more than PCE, gasoline, is also harmful to human health.

干洗使用的洗涤剂多是四氯乙烯、汽油等，对人体健康亦有害。

There are plenty of books that have little or nothing genuinely to say about the human condition, but at least they are constructed from the building bricks of adult experience — there are sexual tensions in the evil, there is a dubiety between the good guys and the bad, there is an understanding of complex human psychologies.

有许多的书，其中没有或几乎没有任何地方真正谈到了人类的状况，但至少它们是由成人体验的砖块来构建的——其中存在有害的性焦虑，模糊的正邪界线和对人类复杂心理的认识。

I think that playing dynamoelectric toy not only waste time ,but also is bad to humans'health.

我认为，打电动玩具既浪费时间也有害健康。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。