活泼自如
Be lively and free
以上为机器翻译结果，长、整句建议使用 人工翻译 。
快步应当始终运步自如，活泼而且规律。
The trot should show free, active and regular steps.
youdao
只要他在，我就再也不能谈笑自如了，因为一种纠缠不休的直觉，提醒我他讨厌轻松活泼(至少表现在我身上时)。
I could no longer talk or laugh freely when he was by, because a tiresomely importunate instinct reminded me that vivacity (at least in me) was distasteful to him.
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