1.So, what it does is basically radiate heat to outer space and also reflect the sunlight so it doesn't get heated up by the sun.

heat up 加热，变热，升温

Then in the last couple of years, the movement for democracy began to heat up.
于是在过去几年里，民主运动开始升温V99kqcs](y-TWg9eD=。

In the summer her mobile home heats up like an oven.
在夏天，她的活动住房像个烤箱那样热起来7lJnrMOL)0R。

%uTy1=3F=o,-~A!Oz,J_y!R*kdsILFG([Qn1bEymw@zlF6y*+XHjTlU& 来源:可可英语 http://www.kekenet.com/broadcast/201501/354982.shtml