inflatable skin造句

• Inflatable skins and breathing tubes allowed the ninja to stay underwater for longer periods of time.
• They have conspicuous inflatable skin on the throat, which is blue in all except the males of the plain-pouched and wreathed hornbills, where it is yellow.
• These are called the " Old " ( 20th to 15th centuries BC ), " Middle " ( 15th to 10th centuries BC ), and " city walls, battering rams to knock down gates, as well as the concept of a corps of engineers, who bridged rivers with pontoons or provided soldiers with inflatable skins for swimming.