第三年第三百五十九天

[nnozomi]

成语
博大精深 broad and deep (often used of knowledge, attainment, etc.)
血海深仇 intense hatred, a blood feud
苦大仇深 hatred, long-standing bitterness
( ”pinyin” )

词汇
留学, study overseas; 保留, retain ( ”pinyin” )

https://mandarinbean.com/new-hsk-3-word-list/

Guardian:
这手机游戏还真是博大精深, wow, there's really a lot to this phone game
一尸两命，血海深仇，不合理吗, two deaths at one blow, intense hatred, it makes sense, doesn't it?
一个苦大仇深的大众脸大叔而已, just an ordinary-looking guy with a deep grudge
各位保留了其原始物种的一些能力, each of them retains some of their original powers

Me:
他虽然理智博大精深，但是不会跳舞。
留学对学习语言很好。