Luckily, my mother rose to the occasion.
幸好，我母亲挺身而出作了处置。
Luckily, I'd noticed where you left the car.
幸好，我注意了你停车的.地点。
Luckily I was never stopped for a Breathalyzer.
幸运的是我从未被拦下来做呼气酒精检测。
I dropped my toast, but luckily it fell right side up.
我把烤面包掉在地上，但幸好它正面朝上。