她的专长是数学、地球科学和化学。

Her speciality is maths, earth science, and chemistry.

《柯林斯英汉双解大词典》

比如，和我一起上地球科学的同学就可能不和我一起上数学课。

For example a classmate who takes earth science with me may not be in my maths class.

youdao

比如，和我一起上地球科学的同学就可能不和我一起上数学课。

For example a classmate who takes earth science with me may not be in my maths class.

youdao