Thi is why we go on, dai after day, concoct fiction with utter seriousness.

这就是不停创作的原因，日复一日，以十分严肃的态度创作小说。

youdao

This is why we go on, day after day, concocting fictions with utter seriousness.

这就是为什么我们日复一日，以极其严肃的态度编造着虚构故事的原因。

youdao

By now I was almost in the same state as the elder brother had been: the bear's utter seriousness robbed me of my composure.

至此我差不多和那位年长的兄弟一样处于同样的状态：熊彻底的严肃夺走了我的沉着。

youdao

The corners of his eyes crinkle not with a hey-I-was-just-kidding smile, but in utter seriousness.

FORBES: Peter Diamandis: Rocket Man

Despite this, Mr Kennedy's early career got underway with utter seriousness.

BBC: Charles Kennedy: Why try harder?