牙医可能会决定拔掉那颗牙，以免反复发作。A dentist may decide to extract the tooth to prevent recurrent trouble.用不同颜色的毡头笔画草图，以免搞混。Use different colours of felt pen on your sketch to avoid confusion.我努力保持蜷曲的姿势以免四肢受伤。I tried to adopt a curled-...
所有的饮料都必须装在可回收的容器中出售。All beverages must be sold in returnable containers.在提炼油页岩的过程中回收的硫酸铵液比过去多了.More ammonium sulphate solution is being recovered in the process of distilling oil shale.在提炼油页岩的过程中回收的硫酸氨液比过去多了.More ammoniu...