YOU SAID:
Fire often smolders underground for days, then flames again.
INTO JAPANESE
火は地下で数日間くすぶり、その後再び炎上することがよくあります。
BACK INTO ENGLISH
Fires often smolder underground for several days and then flare up again.
INTO JAPANESE
火災は地下で数日間くすぶり、その後再び燃え上がることがよくあります。
BACK INTO ENGLISH
Fires often smolder underground for several days before reigniting.
INTO JAPANESE
火災は、再燃するまで数日間地下でくすぶることがよくあります。
BACK INTO ENGLISH
Fires often smolder underground for several days before reigniting.
You should move to Japan!