be subject to中的subject是形容词，意思很多：
1、易受某事(尤指坏事)影响；易患……
All flights are subject to delay.所有航班都可能延误。
All prices are subject to change without prior notice.所有价格如有变动，恕不另行通知。
2、取决于某事；视某事而定
The funding is subject to approval by the Board of Education. 拨款有待教育部委员会批准。
3、更多：be subject to a rule/law/penalty/tax etc
须遵守规则/须遵守法令/须缴纳罚款/须缴纳税款 等
【注意】be subject to比较正式，所以通常我们不会对小孩说：You may eat ice cream, subject to completion of your homework. 而只会说：You may eat ice cream if you finish your homework。
be subjected to中subject是动词，这个短语其实是动词短语subject to的被动式。subject to：使经受；使遭受；使服从，常用以描述令人不快的经历。
Police subjected him to hours of questioning.
警方对他进行了数小时的盘问。
变成被动语态则是：
He was subjected to hours of questions.
他被盘问数小时/他受到了数小时的盘问。
再如以下的新闻：
The two women (who are suing after they were subjected to a humiliating and invasive cavity search on a Texas roadside on Memorial Day last year) have spoken out about their ordeal.
这两名遭受了羞辱性搜身的女性……
be subjected to
1、易受某事(尤指坏事)影响；易患……
All flights are subject to delay.所有航班都可能延误。
All prices are subject to change without prior notice.所有价格如有变动，恕不另行通知。
2、取决于某事；视某事而定
The funding is subject to approval by the Board of Education. 拨款有待教育部委员会批准。
3、更多：be subject to a rule/law/penalty/tax etc
须遵守规则/须遵守法令/须缴纳罚款/须缴纳税款 等
【注意】be subject to比较正式，所以通常我们不会对小孩说：You may eat ice cream, subject to completion of your homework. 而只会说：You may eat ice cream if you finish your homework。
be subjected to中subject是动词，这个短语其实是动词短语subject to的被动式。subject to：使经受；使遭受；使服从，常用以描述令人不快的经历。
Police subjected him to hours of questioning.
警方对他进行了数小时的盘问。
变成被动语态则是：
He was subjected to hours of questions.
他被盘问数小时/他受到了数小时的盘问。
再如以下的新闻：
The two women (who are suing after they were subjected to a humiliating and invasive cavity search on a Texas roadside on Memorial Day last year) have spoken out about their ordeal.
这两名遭受了羞辱性搜身的女性……
be subjected to