A new pet census showed that cats now outnumber dogs by a whisker (7 million to 6.9 million).新的宠物普查显示出猫的数量略微超过了狗的数量（700万比690万）。One authority made a census of the spiders in a grass field in the south of England, and he e...
Some of the older telephones still only accept tokens.一些较老式的电话机仍然只收代币。These tokens are exchangeable for DVDs only.这些赠券只能换 DVD 盘。The council gives old people free tokens.委员会发给老年人免费的代金券....
Hybridising the two species will reduce the red to orange.将这两个物种杂交后颜色会由红色淡化成橙色。Some animal and plant species cannot accommodate to the rapidly changing cond-itions.某些种类的动植物不能适应迅速变化的环境。The disease can spread from one mamm...