Job opportunities for students are expanding rapidly and more people of all ages are becoming aware of online learning that allows them to study at home. (Para.1)
Meaning: Students have many more chances to get jobs, and more people of different ages are beginning to learn about online learning which allows them to study at home.
expand: v. (cause to) grow larger
Iron expands when it is heated. 加熱時鐵會膨脹。
The company has expanded its operations in America by building a factory there. 這家公司在美國建立了一家工廠，從而擴(kuò)大了在美業(yè)務(wù)。
people of all ages: people of different ages
be aware of: having knowledge or understanding of
I'm quite aware of how you feel about this problem. 我很清楚你對這個問題的感受。
He was so deep in his reading that he wasn't aware his father had entered. 他讀書很專心，連父親進(jìn)門都不知道。