That tiny radiator doesn't give off much heat.

那个小散热器散发不出太多热量

Many household products give off noxious fumes.

很多家用产品散发有害气体。

Fireflies give off flashes of light when they fly at night.

萤火虫夜间飞行时发出闪光。

If plastic and rubber are burnt, they'll give off poisonous gases.

要是塑料和橡胶被焚，就会放出有毒的气体。

Many flowers give off a nice smell.

许多花朵都会散发出香味。

These fuels give off heat when they burn.

当这些燃料燃烧时释放出热能。