工厂放出的废水把这条河弄得不能游泳了.The effluent from the factory makes the river unsafe for swimming.在自由空间放出的气体将无限膨胀.A gas released in free space would expand indefinitely.染料被存活的肿瘤细胞放出的脱氢酶所还原.The dye is reduced by dehydrogenase enzymes ...
Today I went to see my penfriend in Hongye Hotel.今天去红叶宾馆见我的笔友.I have not received any message from my penfriend for almost half an year.我已经大约半年没接到我笔友的消息了....