他当着她的面摔上了门。
另一方面，Ruby具有这三门语言的的共性。
On the other hand, Ruby has common elements with all three of these.
上学时辅修一门课程可以拓展自己的知识面。
金属材料工程是一门理工结合、涉及知识面较广的应用型专业。
Metal material engineering science is an applied subject which relates to comprehensive knowledge.
金属材料工程是一门理工结合、涉及知识面较广的应用型专业。
Metal material engineering science is an applied subject which relates to comprehensive knowledge.
应用推荐