think nothing of sth 

to consider that an activity is easy and not unusual

認為…容易，看輕

When I was younger, I thought nothing of riding my bike 50 miles in a day.

年輕時，我覺得一天騎50英里自行車算不了什么。

Alice thought to herself, "After such a fall as this, I shall think nothing of tumbling down stairs!"

愛麗絲想：“摔了這一跤之后，我從樓梯上滾下來就不算回事。”

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