When the Norsk Hydro plant was bombed in WW2, thousands of gallons of heavy water destined for Nazi Germany's nuclear project spilled from the plant's enrichment cascade back into the ocean.
My friend says that the boat is about to sink.I know that heavy things sink into water.
an heavy attack
A heavy sword is rather unwieldy.
There was a heavy dew making the grass glisten.
there was a heavy Immigration flow into the country
The Nazis hoped to use the heavy water to make atomic weapons.
The workers hoisted the heavy load with a crane.
I had to carry a heavy burden up the mountain.
The football player's padding was bulky and heavy.
The heavy rain is eroding the soil.
The table was so heavy (having a lot of weight) , my uncle couldn't lift it. :(
I remember Lyndon Johnson's heavy-hearted announcement regarding JFK's assassination in Dallas.