終始

終始

"終始" means "from beginning to end" or "throughout."

In this sentence, '終始' is used to indicate that the state of calmness was maintained continuously from the beginning to the end of the meeting.

会議中、彼は終始冷静でいた。

During the meeting, he remained calm throughout.

Here, '終始' is used to express that her smiling persisted throughout the period of time being referred to.

彼女は終始笑顔を見せていた。

She showed a smile throughout.

In this case, '終始' is applied to highlight that the same discussion continued without interruption for the entire period.

問題について終始同じ議論が繰り返された。

The same discussion about the issue was repeated throughout.