This dictionary is better than the others于 This dictionary i

都对.
the others 和 others 的区别在于：前者是指在前文中已经提到的事物,而后者是泛指.
This dictionary is better than the others 比较的是前面曾经提到过的那些词典,而
This dictionary is better than others 是说“这个词典比别的词典好”（可以指任何词典）.