A mere repetition of other people's research cannot be called true scientific research.
他人の研究を繰り返すだけでは本当の科学的研究とは言えない。
The volcano erupts at regular intervals.
その火山は周期的に噴火を繰り返す。
Generally speaking, history repeats itself.
一般的にいえば、歴史は繰り返す。
Don't make the same mistake again.
おなじ間違いを繰り返すな。
The emotion they gave me was exquisite, but I could not preserve it, nor could I indefinitely repeat it; the most beautiful things in the world finished by boring me.
Although I broke test tubes and played about with chemicals for fun, I did occasionally manage to obey the teacher's instructions as well; repeating experiments that others had long ago undertaken.
You're wasting your time with all this needless repetition so spare us the long-winded explanation.
同じことを何回繰り返すの。屋上屋を架すようなくどい説明は勘弁してよ。
He made a firm resolution never to repeat it.
彼は二度とそれを繰り返すまいとかたい決心をした。
Comparing American English and British English is like counting incompatible sets of floors of a building. That's why, when you try translating over and over again between the two, it's like climbing an endless set of floors. You might even reach the moon