学习新语言为你打开了通往不同文化的大门。

Learning a new language opens ___doors to different cultures.

请记得晚上睡觉前锁好所有的门。

Remember to lock all the ___doors before going to bed at night.

学习外语会为你打开更多机会的大门。

Learning a foreign language can open new ___doors for you.