Sometimes I forget that I'm using my cell phone.

有时候我都忘记我是在用手机聊天。

youdao

And sometimes I forget that I actually took steps to get here.

所以有时候我会忘记自己是如何做到这一点的。

youdao

Sometimes I forget that we don't have school on Saturdays.

玛丽：有时候我会忘记星期六我们不用上课。

youdao

Sometimes I forget that.

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Sometimes I might forget where I put my keys, or to drop off the dry cleaning, but I can remember trading situations and technical patterns dating back over 10 years as if they were happening now.

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But I ask because I am merely wondering whether we sometimes forget a grim reality of the story of life on Earth - that extinction has always been with us.

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