The whole class is working hard preparing for the exams.

　　全班都在努力用功準備考試。

　　I'm not prepared to discuss this on the phone.

　　我不想在電話里談論此事。

　　Parents play a crucial role in preparing their child for school.

　　父母對孩子做好上學的準備起著至關重要的作用。

　　I had no time to prepare.

　　我當時沒時間準備。

　　The college prepares students for a career in business.

　　這個學院是培養(yǎng)商務人才的。