There was something that ever made me smile or cry. It has gone for a long time.

总有那么一首歌，总有那样一处景代表着已逝去的那个年代。

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The sympathy between the twins is so great (that) they smile or cry at the same time.

孪生子的交感作用十分明显，以至同哭同笑。

youdao

For example, infants learn that when they cry or smile someone responds to them.

例如，幼儿知道当他们哭泣或微笑时，有人会回应他们。

youdao

She yelled, Rachel, get on that man's lap and smile or I'll give you something to cry about.

NPR: Crumpet the Elf Reads from Santaland Diaries