能上能下 able to go up and down
Explanation
指干部不计较职位高低，不论处于领导岗位或在基层从事实际工作，都能踏踏实实地干。
Refers to cadres who do not care about the high or low positions, whether in leadership positions or in the grassroots engaged in practical work, can work steadily and practically.
Origin Story
老张是一名基层干部，他工作认真负责，深受百姓好评。后来，他被提拔到更高的职位上，依然兢兢业业，为人民服务。他从不计较职位高低，无论在哪个岗位上，都能认真完成任务，体现了“能上能下”的优秀品质。
Lao Zhang was a grassroots cadre who worked diligently and was highly praised by the people. Later, he was promoted to a higher position, and still worked diligently, serving the people. He never cared about the high and low positions, no matter what position he was in, he could complete his tasks conscientiously, reflecting the excellent qualities of "being able to go up and down".
Usage
作谓语、宾语、定语；指可以上下活动，也指干部不计较职位高低，不论处于领导岗位或在基层从事实际工作，都能踏踏实实地干。
Used as predicate, object, attributive; refers to the ability to move up and down, also refers to cadres who do not care about the high or low positions, whether in leadership positions or in the grassroots engaged in practical work, can work steadily and practically.
Examples
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张书记能上能下，深受群众爱戴。
zhāng shūjì néng shàng néng xià, shēn shòu qúnzhòng àidài
Secretary Zhang is able to work at both high and low positions, and is deeply loved by the masses.
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他既能做好领导工作，也能深入基层，真是能上能下
tā jì néng zuò hǎo lǐngdǎo gōngzuò, yě néng shēnrù jīcéng, zhēnshi néng shàng néng xià
He can do a good job of leadership, but also go deep into the grassroots level, really able to work both up and down.