Besides, sometimes some players don't behave decently, too many underhanded actions.

此外，有些运动员有时表现粗鲁，不文明动作太多。

youdao

If men would behave decently, the world would be decent "- that's how Orwell distilled Dickens's moral vision."

“如果每个人的行为体面，整个世界就会体面。”这是奥威尔提炼出来的狄更斯的道德愿景。

youdao

The children do not know how to behave themselves decently.

小孩子不懂如何举止得体。

《新英汉大辞典》

In a line of thought popular among German conservatives between the two World Wars, Kagan holds that liberals are dreamers who believe that nations will behave decently once they are part of a rational world order, where all are free to pursue their enlightened self-interests within a framework of internationally agreed-on rules, as promulgated by such institutions as the League of Nations and the United Nations.

NEWYORKER: After America