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Use "mountaintops" in a sentence
"Popovers as rounded as the mountaintops are a specialty and come with everything from lobster salad ($20) to vegetable quiche ($12)."
"They're just-plant these mountaintops, which is just basically gravel with a little bit of grass seed, and take a picture when it greens up, and then they leave."
"These repeater stations are located in high locations such as mountaintops or tall buildings in the big cities and consist of a powerful transmitter and a high-gain antenna allowing Ham operators to extend their coverage areas, often as much as 200 miles or more."