However, although they look dangerous because of their wide mouths and sharp teeth, all but two or three kinds are harmless to humans.

尽管它们有宽大的嘴巴和锋利的牙齿，看上去很危险，然而除了两三种外，其余的对人类并没有危险。

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"There are drug treatments that can reduce the intra-ocular pressure, but that means life-long treatment involving two or three kinds of eye drops three times a day," says Prof.

“药物治疗可以降低眼压，但这意味着终身治疗，每天三次滴两或三种眼药，”Assia教授说。

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Universal bag printing standard size three open, four open four-color or three. Each kind is divided into two kinds of positive degree or degree.

通用的手提袋印刷标准尺寸分三开，四开或对开三种。每种又分为正度或大度两种。

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While other kinds of food allergies present in the first two or three years of life, pollen allergies that contribute to oral allergy syndrome develop more slowly, Wood said, peaking in the teenage and young adult years.

CNN: Oral allergy syndrome may explain mysterious reactions

The price of sugar is two or three times higher than world levels, and that increases the price of everything from breakfast cereal and all kinds of other products.

NPR: A Closer Look: Helping the Working Poor