YOU SAID:
the quick brown mouse jumps over the lazy fox and scares it, the fox immediately gives the mouse a good thrashing
INTO JAPANESE
素早い茶色のネズミが怠け者のキツネを飛び越えて怖がらせると、キツネはすぐにネズミに良いスラッシングを与えます
BACK INTO ENGLISH
When a quick brown mouse jumps over and scares a lazy fox, the fox immediately gives the mouse a good thrashing
INTO JAPANESE
素早い茶色のネズミが怠け者のキツネを飛び越えて怖がらせると、キツネはすぐにネズミに良いスラッシングを与えます
BACK INTO ENGLISH
When a quick brown mouse jumps over and scares a lazy fox, the fox immediately gives the mouse a good thrashing
You've done this before, haven't you.