第三十八天

[nnozomi]

都 for "all," "every," "both"
https://resources.allsetlearning.com/chinese/grammar/The_%22all%22_adverb_%22dou%22

都 is another one of those "turns up all over the place" ones, this is at least one of its functions...

Guardian:
你们都没注意到吗？ (you all didn't notice = none of you noticed?)
他们两个都是能量体 (they're both energy beings)
每次都这么巧 (every time it's such a coincidence)

My practice:
我都懂 (from 叛逆者, simple and heartfelt)
在日本，每年都在二月十四号女人把男人给巧克力，不过一定要等待三月收到的。
我们俩都很喜欢听音乐。