秃顶的英文：
thin on top

参考例句：

He has a shiny bald pate.
他是个亮光光的秃顶。

Moreover, a lot of balding men wear wigs.
此外，不少秃顶的人戴假发。

He resents any allusion to his baldness.
他讨厌人家影射他秃顶.

Miss Pao rushed into the arms of a balding, dark, pudgy man in big glasses
鲍小姐扑向一个半秃顶、戴大眼镜的黑胖子怀里。

a bald porcine old man(Vladimir Nabokov)
一个秃顶的肥猪般的老头(弗拉基米尔·纳博科夫)

The bald patch on the top of his head
他头上的一块秃顶

She teased her father about his bald hair
她取笑父亲的秃顶。

He was short and bald and had a moustache.
他个头不高，秃顶，留着八字胡。

Jill couldn't resist making jokes about his baldness.
吉尔忍不住拿他的秃顶开玩笑.

Fenton was a thin, balding and ascetic man
芬顿身材瘦削，秃顶，是个清心寡欲的人。

thin是什么意思：
adj. 薄的；细的；瘦的，瘦削的；稀少的；淡薄的
adv. 薄；细；稀；疏；淡；微
v. 使薄；使细；使瘦；使稀薄；使淡；使稀疏
n. 细小（或稀薄）的东西；细小（或稀薄）部分

Skate on thin ice.
如履薄冰。

The thin end of the wedge is dangerous.
楔的细端是危险的。

a thin dribble of oil.
细线般滴下的油。

Thin and bony;angular.
瘦弱的瘦的，瘦骨嶙峋的；骨瘦如柴的

She has long thin shanks.
她有着细长的腿。