ha-ha

基本解释

I mean, what is this thing we have in our brains that makes us say “ha-ha” when someone slips on a banana?
我是指，儅我們看到有人踩在香蕉皮上滑倒時，究竟是大腦裡的什麽物質讓我們發出“哈哈”的笑聲。
The insula is associated with emotion, so it seems likely that this is the brain feeling good when it gets the joke–the “ha-ha” response.
腦島與人的情緒有關，看來可能是在接收到好笑的信息時，大腦感覺良好，於是（讓身躰）做出了“哈哈”的反應。
By studying the transition between the panting of chimps and the human ha-ha, scientists discovered that breath control is the key to the emergence of both human laughter and speech.
通過研究從大猩猩喘氣的呼呼聲到人類“哈哈”的笑聲兩者之間的轉化，科學家發現，呼吸控制是人類語音和笑聲出現的關鍵所在。

Grover Cleveland really was going to the White House -- ha ha ha! His election would bring some important changes to the country.
For Hebrew, I know one sentence in Hebrew: "Sleecha, eypho ha-sheeruteem" which I think is a request for the bathroom.
我知道一句希伯來語,"請問,衛生間在哪裡",我猜這話的意思是想去衛生間了
耶魯公開課 - 心理學導論課程節選
Ah. So which one's better? Yeah. Ah-ha.
謝謝，再想一會。
麻省理工公開課 - 計算機科學及編程導論課程節選

I'm by myself in a bathroom in Denver, and I guess that's how the comedy trip ended, not funny ha-ha but funny peculiar.
NPR: A Comic Horror Story from Aspen

a wall or other boundary marker that is set in a ditch so as not to interrupt the landscape