Meaning of jí:
级
level; grade; rank; step (of stairs)
Wǒ míngnián yào shēng dào gèng gāo de niánjí.
我明年要升到更高的年级。
I will move up to a higher grade next year.
Tā zài zhè cì kǎoshì zhōng dédào le zuìgāo de jíbié.
她在这次考试中得到了最高的级别。
She achieved the highest grade in this exam.
Tā zài kǎoshì zhōng qǔdéle zuìgāo jí de chéngjī.
她在考试中取得了最高级的成绩。
She achieved the highest rank in the exam.
Tā mànmàn de zǒu shàng lóutī de měi yī jí.
他慢慢地走上楼梯的每一级。
He slowly walked up each step of the stairs.
CL:個|个[ge4]; classifier: step, level
Tā shàng gè xuéqī de shùxué chéngjì shì A jí.
他上个学期的数学成绩是A级。
His math grade last semester was A level.
Tā yǐjīng dádàole yīgè hěn gāo de jíbié.
他已经达到了一个很高的级别。
He has already reached a very high level.