Mr.smith, whom I often visit (call on), is my good friend.

史密斯先生是我的好朋友，我常去拜访他。

youdao

Mr. Smith , whom I often visit (call on) , is my good friend.

史密斯先生是我的好朋友，我常去拜访他。

youdao

Smith , whom I often visit (call on) , is my good friend.

史密斯先生是我的好朋友，我常去拜访他。

youdao

Smith , whom I often visit (call on) , is my good friend.

史密斯先生是我的好朋友，我常去拜访他。

youdao