自始至终

He stays all the way in the game.

他始至参加比赛。

The meeting was one big yawn from start to finish.

那会议始至十分无聊。

The meeting was a fiasco from start to finish.

会议始至都失败了。

The principle had been pernicious from beginning to end.

这条原则始至都是有害的。

He has consistently denied murdering his estranged wife.

他始至否认谋杀了分居的妻子。