水银是一种已知的有毒物质。Mercury is a known poison.我们看到的温度计里的液体是水银.The liquid we can see in thermometers is mercury.一小滴水银滴进了这个小孔.Into this aperture a droplet of mercury was poured....
As indigenous oral bacteria, the Actinomyces are thought to contribute to caries especially to root caries.放线菌是口腔固有菌群中的主要菌属,与龋病尤其是根龋的发生、发展有密切关系.Firstly, a strain secreting blue pigments was separated from soil that was i...
如果你等待，发生的只有变老。If you wait, all that happens is that you get older.不要等待好事降临，你要向幸福进发。Do not wait for good things to happen to you. You need to walk towards happiness.水手们在等待离港的时候四处闲逛。Sailors hung about while they waited to ...
The weary walkers soothed their aching feet in the sea.走累了的人们把脚伸进海水中浸泡以缓解疼痛。The music soothed her for a while.音乐让她稍微安静了一会儿。The soft modulation of her voice soothed the infant.她柔和的声调使婴儿安静了....