这条鱼调味很淡，烤得恰到好处。

The fish was ___lightly seasoned and grilled to perfection.

他对这家新初创公司投资不多，更愿意将初期风险降到最低。

He ___lightly invested in the new startup, preferring to minimize his initial risk.

你不能如此轻率地对待这项关键职责；它需要你全身心的投入。

You can't take such a critical responsibility ___lightly; it demands your full attention.