1·It's a common problem, the one I'm asked about most when I'm on the lecture circuit.
这是个常见问题，一个在我巡回演讲时人们最常问到的问题。
—— 《柯林斯英汉双解大词典》
2·A common problem is that we don't like to rewrite.
一个常见的问题是我们不喜欢重写。
3·Noisy neighbors are a common problem in a society where many people live closely together.
社会上，很多人住得很近，邻居吵闹是一个普遍的问题。
4·This is a very common problem.
这是很普遍的问题。
5·This is an extremely common problem.
上述是一个非常普遍的问题。
6·This is a common problem of frameworks.
这是框架的一个常见问题。
7·The most common problem is homelessness.
无家可归成为了最为常见的问题。
8·OOV is a common problem in small grammars.
OOV 是小文法中的一个常见问题。
9·Automating user addition is a common problem.
自动添加用户是一个常见问题。
10·Weight regain is a common problem for dieters.
体重反弹对每位减肥者来说是个普遍问题。