suffer

1. V-T/V-I If you suffer pain, you feel it in your body or in your mind. 经受 (痛苦); 受苦

Within a few days she had become seriously ill, suffering great pain and discomfort. 在几天时间里她已病得很重，经受了极大的痛苦和不适。

He suffered terribly the last few days. 他过去的几天痛苦不堪。

2. V-I If you suffer from an illness or from some other bad condition, you are badly affected by it. (因疾病等糟糕的处境而) 受苦

He was eventually diagnosed as suffering from terminal cancer. 他最后被诊断为癌症晚期。

3. V-T If you suffer something bad, you are in a situation in which something painful, harmful, or very unpleasant happens to you. 遭受

The peace process has suffered a serious blow now. 该和平进程现已受到一次沉重的打击。

4. V-I If you suffer, you are badly affected by an event or situation. 受难

There are few who have not suffered. 几乎无人免于受难。

5. V-I If something suffers, it becomes worse because it has not been given enough attention or is in a bad situation. 变差

I'm not surprised that your studies are suffering. 你功课变差，我并不感到惊讶。