トライ&エラーじゃありません
toraierājārimasen
1. Not trial and error.; Not by trial and error.
Noun
#117109
1. Not trial and error.; Not by trial and error.
1. (common) cold; influenza
1. error
2. fumble that leads to failing to put out a runner
1. snake
2. serpent; large snake
1. try; attempt
2. try (rugby)
1. then; well
1. hedge
1. journal; log