Repeating Words for Emphasis in Japanese

I started writing Japanese lessons with my wife Rei back in 2015. Since then, we've written 2000-ish of them. All of this content eventually evolved into NativShark, a simple solution for going from zero to a very high level of Japanese comprehension: https://nativshark.com/

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In this video, we are breaking down a section of this Japanese video:    • Big Thomas Coal toys & Thomas Plarail...  

The Japanese featured is:

玉玉玉玉！(lit. ball, ball, ball, ball!)
あっ、そんなもんでいいんじゃないかな (Ah, is that a good amount?)
入れすぎじゃないかな (Did I put in too many?)
行くぞ！ (Let's go!)
よっしゃ！来た！来た来た来た来た！ (All right! Here he comes! Here he comes!)
ゆあ～ (Ahhh!)
石炭入ったぞ！ (The coal went in!)
よーっしゃ！ (All right!)

If you have a piece of Japanese content you want me to break down and explain in detail in a video, please let me know in the comments. You can also get a hold of me in the NativShark Discord community.

Best of luck with your studies!

Code: QHIOYUYLVAOWIMUA