単語 periods の日本語での意味

periods は英語で何を意味しますか?Lingolandと一緒にこの単語の意味、発音、具体的な使い方を学びましょう

periods

名詞

1.

期間

a length or portion of time.

:
he had long periods of depression
2.

期間

the interval of time between successive occurrences of the same state in an oscillatory or cyclic phenomenon, such as a mechanical vibration, an alternating current, a variable star, or an electromagnetic wave.

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