keep on不可以表示喜欢

例句

1.

Never keep on exercising if you have even the slightest chest pain

即使你只感到很轻微的胸部疼痛，也不要继续锻炼。

2.

The ceasefire itself could prove stillborn if rebel units in the bush keep on fighting.

如果丛林地带的叛军继续开火，那停火协议本身就可能起不到任何作用。