“自行其是”可以翻译为“act on one's own” 、“do things according to one's own will” 或者 “go one's own way（不顾他人意见，按自己的方式行事，带有较强烈的独断意味） ” 。
例如：
他总是自行其是，从不考虑别人的建议。He always acts on his own and never considers others' suggestions.
不要自行其是，应该多听听团队成员的意见。Don't go your own way. You should listen more to the opinions of team members.