Snellen's chart
[医] 斯内伦氏视力表
🧩 词语组成解析
🗣️ 情景例句
Oh, you're a lucky guy, Harry.
噢， 你是一个幸运的家伙， Harry。
Who are you writing to?
你在给谁写信？
But even when such refinements are not available, there is plenty to keep you occupied.
即使没有这些消遣条件，也总是有事可做。