You are welcome to vary the diet.

　　我們鼓勵(lì)不時(shí)變換飲食。

　　You are welcome to put forward your views.

　　諸位有什么意見，歡迎提出來。

　　You are welcome to the loan of my knife.

　　你可隨意借用我的小刀。

　　You are welcome to use my library.

　　你可以隨便使用我的藏書。

　　You are most welcome to my humble abode.

　　竭誠歡迎光臨寒舍。