I am a beginner Chinese learner. I came across the following sentence in a Chinese-English Dictionary: 社会都应该关注老年人问题。 It is translated as "Society should pay close attention to the problems of the elderly." My question is about the usage of the word 都 in this sentence. Shouldn't the sentence be translated as "All societies should pay close attention to the problems of the elderly" instead? Otherwise, I don't understand why the word 都 is needed in this sentence.

What is the difference between 中文 and 汉语？ In the Rosetta Stone Chinese course, I came across the following sentence: 如果你学习中文，你就会说汉语。 Is there a reason why in the two parts of that sentence, two different words are used for the Chinese language? Is there a difference between the two words? Should we always say that we learn 中文, but speak 汉语, or does it not matter?