几

这几天

zhè jǐ tiān

the past few days

里瓦几亚条约

lǐ wǎ jī yà tiáo yuē

Treaty of Livadia (1879) between Russia and China, relating to territory in Chinese Turkistan, renegotiated in 1881 (Treaty of St. Petersburg)

双曲几何

shuāng qū jǐ hé

hyperbolic geometry

香几

xiāng jī

a small table to accommodate an incense burner

黎曼几何

lí màn jǐ hé

(math.) Riemannian geometry

黎曼几何学

lí màn jǐ hé xué

Riemannian geometry

一蹴可几

yī cù kě jī

to succeed at the first try (idiom)

不拉几

bù lā jī

(dialect) extremely

不知凡几

bù zhī fán jǐ

one can't tell how many

代数几何

dài shù jǐ hé

algebraic geometry

代数几何学

dài shù jǐ hé xué

algebraic geometry

内在几何

nèi zài jǐ hé

intrinsic geometry