They thoughtlessly planned a picnic without him.

他们考虑不周，安排了一次野餐却没带上他。

《柯林斯英汉双解大词典》

As she was crossing to the day-nursery he added thoughtlessly, "And shut that window."

当她走到孩子们的日间活动室去的时候，他又不假思索地加了一句：“把窗子关上。”

精选例句

"As she ought to have done, she thoughtlessly sang," Two eyes, are you sleeping?

她没有考虑到就唱到：“两只眼，你睡着了吗”她一直这么唱，“三只眼，你醒了吗？”

article.yeeyan.org

Credit Bucksbaum's reputation for not jumping thoughtlessly into merger deals at every turn.

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But instead of making that violence profound and impactful, they give us myriad hordes of badguys to thoughtlessly, remorselessly slaughter.

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Of course, a dose of unease is always good in business, but too much causes everyone to press ahead thoughtlessly.

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