The board meeting commenced 10 minutes late.

董事会会议延迟了十分钟。

She commenced her medical career in 1956.

她于1956年开始行医。

Their hopes commenced to rise.

他们的希望开始增加。

They commenced a systematic search.

他们开始了系统的搜查。

The rain commenced pouring violently down.

瓢泼大雨猛烈地下起来。

She commenced studying chemistry.

她开始学习化学。