1. 船；小船
    A boat is something in which people can travel across water.

    e.g. One of the best ways to see the area is in a small boat...
           游览该地区的一个最好方式是乘坐小船。
    e.g. The island may be reached by boat from the mainland.
           这个岛屿可以从大陆乘小船到达。

2. 客轮；客船
    You can refer to a passenger ship as a boat .

    e.g. When the boat reached Cape Town, we said a temporary goodbye.
           客轮到达开普敦时，我们暂时分别。

3. see also: gravy boat;rowing boat

4. 坐失良机；错失机会
    If you say that someone has missed the boat, you mean that they have missed an opportunity and may not get another.

5. （尤指为了庆祝）挥金如土，大事铺张
    If you push the boat out, you spend a lot of money on something, especially in order to celebrate.

    e.g. I earn enough to push the boat out now and again.
           我挣的钱足以时不时摆摆阔了。

6. 捣乱；兴风作浪
    If you say that someone is rocking the boat, you mean that they are upsetting a calm situation and causing trouble.

    e.g. I said I didn't want to rock the boat in any way.
           我说过我根本不想挑事。

7. 处于相同的倒霉境地；同病相怜
    If two or more people are in the same boat, they are in the same unpleasant situation.

boat