tightens

过去式：

动词过去式: tightened

更多词形：

名词: tightener | 动词过去式: tightened | 动词过去分词: tightened | 动词现在分词: tightening | 动词第三人称单数: tightens |

单词例句：

Because of unemployment many people had to tighten their belts.

由于失业，许多人不得不勒紧裤带生活。

You should tighten the down - haul.

你应该拉紧前帆角下拉索。

Tighten the noose around [round] the neck of sb.

拉紧某人脖子上的绞索

Take your spanner, and tighten the nut.

把你的扳手拿来, 把螺帽拧紧。

To take up the slack of;tighten.

拉紧绳子；加紧

We would better tighten up the ropes a bit .

我们最好把绳子拉紧一点。

We must tighten up our management policies.

我们必须强化我们的经营方针。

The screws are loose;I must tighten them.

螺丝松了，我得把它们拧紧。

To take upthe slack of; tighten.

拉紧绳子;加紧。