Miss Guo is reading a book to prepare a quiz for a class competition.

为了准备班级竞赛的小测试，高小姐正在读一本书。

youdao

Miss Guo is reading a book to prepare a quiz for a class competition about the oceans.

郭老师正在看一本书，准备在班上做一个关于海洋的小测验。

youdao

Students held a labour competition in the class.

学生们在班级进行了一次劳动竞赛活动。

youdao

Another example: Novartis a few years ago was ahead of the competition in developing a new class of diabetes pills.

FORBES: Why Biotech Investing Is Like Gambling In Vegas

Skeptics of beginners' abilities should note that students in a Hatchery class won a recent hackathon, or product-building competition, in a battle against full-time developers.

WSJ: Breaking Tech's Code

The company is growing faster than its competition due to a best in class reference customer list and more recently, the launch of software that is easier to use, focuses on alerting users when something is wrong, and finally, a push into the mid-market with an in-house sales force.

FORBES: 5 Buy-Rated Stocks For 2013