春联是对仗工整的文字，通常一联七字，由黑墨笔写在红纸上，然后贴在门框两侧。

Spring couplets are paired phrases, typically of seven Chinese characters each, written on red paper in black ink, and one pasted on each side of a door frame.

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通过测定土壤样品的重金属含量，调查了上海七宝镇污染水系两侧与上海宝钢集团厂区的重金属污染状况。

In this paper, the stream Banks nearby Qibao town and the factory area of Shanghai Baoshan Steel Company were selected as the typical areas contaminated by heavy metals.

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幼虫叫“豆虫”，老熟的长约90毫米，嫩绿色，头部色较深，尾部有尾角，从腹部第一节起，两侧有七对白色线。

Larvae called "bean insect", the old familiar about 90 mm long, head of peak green, the color is deep, the tail end Angle, from the abdomen is first quarter up, both sides have seven to white line.

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