They endeavored to make her happy, but in vain.
他们想方设法地使她高兴，但那是徒劳的。
Especially, % children must do whatever they can to help their mother and make her happy on the Day.
特别是，孩子们可以帮助妈妈做任何事，也可以让她在那天高兴。
Especially, % children must do whatever they can to help their mother and make her happy on the Day.
特别是，孩子们可以帮助妈妈做任何事，也可以让她在那天高兴。
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