致力于全球公共健康的人一般不是很开心（言下之意，还是开心的，只是不是很开心而已？ 我认为是：难得开心，或几乎不开心）。

CAMPAIGNERS for global public health are rarely cheery.

youdao

所以，对你来说最重要的就是每当有让你生气或不开心的事出现时，你要故意想一些开心的事情来取代它们。

For this reason, it's most important that you deliberately think about something positive whenever you want to cancel out a thought or feeling that makes you angry or unhappy.

youdao

昨天我太累了，算上今天我工作了4天了，每一件事对于我都是新的，开心的或不开心的。

Yesterday I was so tired, add today I have worked for 4 days, everything to me is new, about the happy and unhappy things.

youdao

昨天我太累了，算上今天我工作了4天了，每一件事对于我都是新的，开心的或不开心的。

Yesterday I was so tired, add today I have worked for 4 days, everything to me is new, about the happy and unhappy things.

youdao