At the door was a neatly dressed, dignified man.

At that moment, there was a rattling at the door.

那时，突然出现咚咚的敲门声。

The queues at the door wound around the building.

门口的队伍绕了大楼一圈。

He kept their photographs in his pocket to show at the drop of a hat.

他毫不迟疑地把他们的照片放进口袋.

He will deliver homilies on the street at the drop of a hat.

他很乐意到街上去布道.

He can sing any song at the drop of a hat.

他随时能唱任何一首歌.

A well-trained dog responds at the drop of a hat.

训练有素的狗一给信号就做出反应.

He was ready to quarrel at the drop of a hat.

他动辄吵架.

Call Me , I at the drop of a hat.

给我打电话吧, 我召之即来!

Call Mary, she can come at the drop of a hat.

打电话给玛丽, 她马上能到.

Weather can vary dramatically and change at the drop of a hat.

天气变化可能会很有戏剧性,说变就变.

Joe is ready to party at the drop of a hat.

乔随时随地准备好要参加派对.

She would blush at the drop of a hat.

她动不动就脸红.

The little girl used to cry at the drop of a hat.

这个小姑娘动不动就哭.

Don't fly into a rage at the drop of a hat. Remember: keep cucumber cool!

别动不动就发火, 记住: 要保持冷静.

I love to travel, I'm ready to go at the drop of a hat.

我喜欢旅游, 我准备马上就去.

The boy is quarrelsome and ready to fight at the drop of a hat.

这个男孩爱吵嘴,动不动就打架.

He used to fight at the drop of a hat.

他以前动不动就打架.

The mortars burst at the edge of the forest.

迫击炮对着森林的边沿地带开火.

That's right at the edge of the Burnham Quadrant, right?

它就在波海姆象限区的边缘, 对 吗 ?

Probably density-independent factors are more important at the edge of the range of a species.

可能,在某物种的分布区的边缘,非密度制约因素最为重要.