“最后一次也是唯一的一次”如何翻译成英文

This is the only time and it is also the last time.

最后一次也是唯一的一次:last and only

The curious bottle which now adorns the bookcase in his study was his first and last purchase of rare cosmetics.
现在装饰在他的书房书架上的古怪瓶子，是他头一次也是最后一次购买的稀罕化妆品。

Your exclusive function.
你唯一的责任
The lone doctor in the county.
县里唯一的一个医生
This is the only one.
这是唯一的一个。
Smoking is his only indulgence.
抽烟是他唯一的嗜好。
Smoking is my only vice.
抽烟是我唯一的恶习。
Sweets are my only indulgence.
糖果是我唯一的嗜好。
You are my only friend.
你是我唯一的朋友。
That's the only alternative.
那是唯一可行的方法。
He is the only possible candidate.
他是唯一合适的候选人。
It is the only solution possible.
这是唯一可能的解释。

Final is the big earthquake of 1939, and is on this nation history the most severe once, having 40,000 men dies.
最后一次是1939年的大地震，也是这个国家历史上最厉害的一次，有40，000人死亡。
The curious bottle which now adorns the bookcase in his study was