Water becomes solid when the temperature goes down to zero.

　　溫度降到零度，水就變成了固體。

　　It was ten degrees below zero last night.

　　昨天夜里的氣溫是零下10攝氏度。

　　Five, four, three, two, one, zero … We have lift-off.

　　五、四、三、二、一、零…我們升空了。

　　You've left off a zero.

　　你漏掉了一個零。

　　I rated my chances as zero.

　　我覺得我根本沒有機會。