If you are cold, close the window.

如果你冷就关上窗户。

《柯林斯英汉双解大词典》

If you are cold, come and take a seat by the fire and warm yourselves.

如果你觉得冷，就过来坐在火边取暖吧。

youdao

Take my jacket if you are cold.

如果你觉得冷，穿上我的夹克吧。

youdao

Some foods can make you sick if they are stored in conditions that are not cold enough to prevent the growth of harmful organisms.

VOA: special.2009.11.30

They say it takes some training. And there can be risks, like running when your feet are too cold to feel if you get injured.

VOA: special.2010.02.03

If you are sweating and cold air manages to get inside your layers then you are in trouble.

BBC: Sir Ranulph Fiennes: Coping with extreme weather

So if you are willing to brave the cold and the snow, you should at least have the right bike under you.

FORBES: Coolest Winter Bikes

If you are worn down by the cold enthusiasm of professional sports, the joyless grind through the schedule and the perfunctory fist-bumps of millionaires, here is a team unafraid to let their personalities slip through, and let a game feel like a game.

WSJ: 2012 London Olympics: U.S. Women's Soccer Team: A New World Order at Old Trafford - Jason Gay