可数的

You can count up the great poets still alive, on the fingers of one hand.

在世大诗人屈指。

Good science teachers are thin on the ground.

优秀理科教师屈指。

Abstract nouns are usually uncountable nouns in English.

英语中抽象名词通常是名词。

Thirty-four years ago only a few earthworms, if any, could be found in a spadeful of his soil.

34年前，里一铲子里就算有蚯蚓，也寥寥。