爱你一辈子用英文表达是：I love you all my life；
love：n. 爱; 热爱; 慈爱; 爱情; 恋爱; 喜好; 喜爱。
you：pron. 你; 您; 你们; 与名词及形容词连用，直接称呼某人; 泛指任何人。
life：n. 生命; 人命; 性命; 人的存活; 生物; 活物。
相关介绍
I am intending love you all my life originally.
是我原本打算爱你一辈子吗？
Women in the North complain that their hubbies find it difficult to say 'I love you.'
北部的妇女抱怨说她们的丈夫很难开口说“我爱你”。
The words 'I love you' were written inside a big red heart.
“我爱你”这几个字写在一个大红心里。
Maybe you can help me with my homework sometime. Dad, I love you."
“也许有一天你会有时间辅导我的作业，爸爸，我爱你。”
A tiny voice spoke, "I love you, Daddy," she said and disconnected.
电话那头小声地说，"我爱你,爸爸,"，然后就挂断了。
