緊張的英文：
1.nervous; keyed-up; edgy; jumpy; on edge

Anatomically, the nervous system is divided into the central nervous system and the peripheral nervous system.
解剖学上把神经组织分为中枢神经系统和周围神经系统。

Her nervous tension relaxed.
她紧张的神经松弛下来。

The brain is the centre of the nervous system.
脑是神经系统的中枢。

We have a key for the door of the house and a key for starting the car.
我们有房间门的钥匙和发动汽车的钥匙。

I left the key in the lock.
我把钥匙留在锁上，忘了取下来。

He fished in the bag for the keys.
他在袋子里摸找钥匙。

It was too edgy, they told Lear.
它太尖锐，他们告诉李尔。

The edgy stick may be dangerous to play with.
玩这种尖利的棍子有危险。

The performers were edgy as they waited for the show to begin.