I want to be his favorite hello and hardest goodbye.

我愿作他，最钟爱的问候，和最不舍的告别。

youdao

I want to be your favourite hello & your hardest goodbye.

我想成为你最爱的hello，和最难说出口的goodbye。

youdao

I want to be your favorite hello, and your hardest goodbye.

我要成为你最想认识和你最不想告别的那个人。

youdao

I want to be your favorite hello, and your hardest goodbye.

我要成为你最想认识和你最不想告别的那个人。

youdao