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matter
n.物质
Everything we can see and touch is made up of matter.
我们看到和触摸到的所有物品都是由物质构成的。
vacuum
n.真空
liquid
n.液体，流体
The three phases of matter are solid, liquid and gas.
物质的三种阶段分别是固态、液态和气态。
solid
n.固体
Gold is solid, but when you heat it, it becomes liquid.
金子是固体，但当你给它加热时，它就会变成液体。
evaporate
v.蒸发(vaporize)
The rubbing alcohol evaporated as soon as the nurse dabbed it on the patient's arm.
当护士把外用酒精涂在病人手臂上时，它就蒸发了。
density
n.密度
The population density is very high in eastern coastal regions of Australia.
澳大利亚东部沿海地区的人口密度很大。
gravity
n.引力
The failure of the experiment was due to exclusion of gravity.
试验失败的原因是因为重力排斥。
velocity
n.速度，速率(speed)
intensity
n.强烈，剧烈；强度
friction
n.摩擦
Friction between two sticks can create a fire./The wheel has been expired due to friction.
两个棍子相互摩擦能生火。/轮子因为摩擦报废了。
pressure
n.压力
He feels the pressure soon after he takes up the job.
他开始工作不久后就感受到了压力。
vector
n.向量，矢量
temperature
n.温度
In hot weather the temperature gets very high.
炎热的天气气温非常高。
conduction
n.传导
radiate
vt.射出(emit, give off)
Heat radiated from the stove./ His smile on the face radiates his confidence.
热量从炉子里散发出来。/他脸上的微笑流露出他的信心。
