1. by boat 乘船。如：

The island may be reached by boat from the mainland.

这个岛屿可以从大陆乘小船到达。

We crossed the river by boat. 我们乘船过河。

注：by boat 有时可用 in a boat 代之。

2. go boating row a boat /sail a boat去划船。如：

We go boating on the lake every weekend. 每个周末我们都到湖里去划船。

3. be in the same boat 处于同样(不利的)境况，处于同样的困境 ; 同舟共济。处于相同的倒霉境地；同病相怜如：

If you lose your job, I’ll lose mine, so we’re in the same boat. 如果你失业，我也会失业，所以我们同舟共济。

You should be in the same boat to either success or failure.

无论最后是成功或失败你们都要风雨同舟。

She's always complaining that she doesn't have enough money, but we're all in the same boat.她总是抱怨自己的钱不够用，可是我们的处境都一样。

4. miss the boat错失良机

If you don't buy now, you may find that you've missed the boat.

你如果现在不买，你会错失良机的。

5. rock the boat 捣乱；惹麻烦 ; 兴风作浪

She was told to keep her mouth shut and not rock the boat.

有人叫她闭嘴，不要招惹是非。

I said I didn't want to rock the boat in any way.

我说过我根本不想挑事。

6.

take a boat 乘船

You can take a boat trip along the coast.

你可以乘船沿海岸旅游一趟。

How about taking the night boat to the island?

乘夜船去那个小岛怎么样？

7. off the boat

在码头

Lili and my father met me off the boat

莉莉和我父亲在码头迎接我。