并列句

　　17.水或許臟并且充滿微生物細(xì)菌威脅人類健康

　　Water may be dirty and contains microscopic animals or bacteria dangerous to human health.

　　18.娛樂活動(dòng)帶給我們更方便更容易的生活,但是過度使用將導(dǎo)致人類的創(chuàng)造力喪失

　　Modern technologies in recreational activities have brought us easier and more convenient life, but using them too often might result in the loss of creativity.

　　19.娛樂給人們帶來很大的快樂而且?guī)椭�他們減輕壓力和抑郁

　　Amusements give them great happiness and help relieve pressure and depression.

　　20.網(wǎng)絡(luò)訓(xùn)練年輕人反應(yīng)迅速激起他們對(duì)計(jì)算機(jī)科學(xué)的興趣

　　Internet trains young people to respond quickly and arouses their interest in computer science.