坐好的英语怎么说

在英语中，"坐好"的意思是"sit properly"或"sit up straight"。这个短语来源于中文，可能是由于许多人认为正确坐姿对健康和身体姿态很重要。例如，在英语中可以说：
"Please sit properly at your desk."
"I can't concentrate when you're slouching in your chair like that. Sit up straight!"
"Good posture is important for your health. Remember to sit up straight and avoid slouching."
希望这对您有帮助！