首先,comment和remark既是动词又是名词,commentary和illustration是名词
comment:平价,评论
eg:Thisis the first draft of the book.Please feel perfectly free to *comment on* it.(comment可与on搭配)
commentary(对书籍等的)评语,评注,评论;实况报道
eg:Stop shouting!I can\'t hear the football *commentary*.
illustration插图,图解;例证,说明----强调“例”
remark