very tight
It's a Chinese idiom. Pinyin is f ē n ɡ y ǔ B ù t ò u, which means that the wind can't blow in and the rain can't pass through. It describes being closed or surrounded very closely. From the story of heroes and heroines.
The origin of Idioms
Chapter 40 of Wenkang's biography of heroes and heroines in the Qing Dynasty: "the inner three floors and the outer three floors surround the master and the young master. They are all crowded to listen to what's going on."
Idiom usage
To be formal; to be an adverbial or attributive; to describe being closed or closely encircled. Chapter 29 of Cao Xueqin's a dream of Red Mansions in Qing Dynasty: "the little Taoist didn't care to pick up the candle scissors, so he got up and ran outside. Just as Baochai was waiting to get off the bus, all the women were surrounded by rain and wind." The terrorists began to throw grenades into the crowded hall.
very tight
Equal courtesy and equal respect - děng lǐ xiāng kàng
enhance agricultural production and economize expenses - qiáng běn jié yòng
honor the teacher and respect his teaching - zūn shī guì dào