一般用在数字的后面,量词的前面。和“左右”差不多。但是数字必须是10、20、30……
yībān yòng zài shùzì de hòumian ,liàngcí de qiánmian 。hé “zuǒyòu ”chàbuduō 。dànshì shùzì bìxū shì shí 、èrshí 、sānshí ……
It's usually used after the number and before the measure word. It's about the same as “zuǒyòu”. However, the number has to be 10, 20, 30...