"This is goodbye, isn't it?" she said quietly.

“这就算告别了，不是吗？”她轻声地说道。

《柯林斯英汉双解大词典》

'So this is goodbye,' she said ruefully.

她悲伤地说：“那么，这就是告别了。”

《牛津词典》

'So this is goodbye,' she said ruefully.

她悲伤地说：“那么，这就是告别了。”

《牛津词典》