含义不同、用法不同、强调重点不同。suggest to do的含义为“建议这么做”，侧重于建议两个人一起做某事；suggest doing的含义为“建议做…”，侧重于建议接受者自己去做某事。
suggest to do还是doing区别
suggest to do意为建议这么做，建议两个人一起做某事。
例句：Can you suggest any means to do it?
你能不能给我想个什么办法做这件事?
Can you suggest a way ( to do it)?
你能提出一个办法吗?
suggest doing意为建议做，建议接受者自己去做某事。
例句：I suggest doing it for five minutes at a time.
我建议每次锻炼5分钟。
I suggest doing something new.
我建议你做些新奇的事情。
You also use "couldn't" in a question to suggest doing something.
用在疑问句中也可用以建议做某事。
If there's something you want to do or somewhere you want to go, we suggest doing it solo.
如果有什么事你想做或什么地方你想去，我们建议单独行动。
suggest的用法
1.As such, the number and extent of his possessions seemed almost tosuggestthe reincarnation of Charlemagne's Empire.
以这样的身份，他拥有的领土数量和范围几乎是查理曼帝国的化身。
2.Financial professionalssuggestthat people consciously the end of the year for themselves and their families do Zhang "year-end balance sheet , " is necessary .
理财专业人士提示，百姓有意识地在年底为自己和家庭做张“年终决算表”是必要的。
3.Suggesta convenient way to determine the rate of hydrolysis of sucrose by an enzyme preparation extracted from the lining of the small intestine.
提出一种简便的方法，测定从小肠绒毛提取的蔗糖酶制备物对蔗糖的水解速度。