▲ impoverish 使贫穷
-Any industry which required high duties impoverished the country and wasn't worth having.
▲ exploitative 剥削的压榨的
-Trade unions provide an essential defence against exploitative working practices.
▲ convection 对流
-The heat from the fires has created too much wind. - It's convection current.
-I actually can't go ice-skating. I have unnaturally brittle ankles.
-The hair came out between his fingers, brittle as straw.
▲ extrusion 挤压
-Next, a finely tuned extrusion process creates a uniform surface free of defects.
▲ pumice 浮石
-Pumice is the only rock that floats.
▲ halve 使...减半
-By reducing her body temperature by just a few degrees, she can halve her energy needs.
▲ assimilate 吸收接受学习
-As a qualified lawyer, he has to assimilate the facts, not just remember them.
-I have not quite assimilated the new rules so I sometimes violate them by mistake.
▲ inhale 吸气吸入
-With every breath, we're inhaling oxygen and exhaling carbon dioxide.
-"He WHAT?" shouted Sirius, causing Harry to jump and inhale a mouthful of ashes.