第三年第两百九十八天

[nnozomi]

成语
建功立业 to accomplish goals
功亏一篑 to fall short at the last moment, to lose out on success through one moment of laxness
冠冕堂皇 high-faluting, dignified, pompous
建功立业 jiàn gōng lì yè; 功亏一篑 gōng kuī yī kuì; 冠冕堂皇 guān miǎn táng huáng

词汇
节约, save (as in saving energy) (pinyin in tags)
https://mandarinbean.com/new-hsk-3-word-list/

Guardian:
我要向黑袍使还有各位老前辈那样建功立业, I want to accomplish my goals for the Black-Cloaked Envoy and all my old superiors
你千万不要功亏一篑, don't you dare fall short at this point
你刚才冠冕堂皇地说了那么多, you had so much high-faluting stuff to say just now
[no 节约]

Me:
功亏一篑真的无奈。
我跟你说了八百次，关洗手间灯节约一下吧。