“认真地”用英语怎么说？

看着这只动物如此认真地梳理自己的毛，我们被逗乐了。We were amused to see how assiduously the animal groomed its fur.她总是很认真地听，就好像这能帮助她弄明白一样。She always listened earnestly as if this might help her to understand.她认真地看着他说：“你不介意吗？”She looked at him ea...