tightened的翻译，读音

例句

C. All nuts and bolts tightened? 所有的螺母和螺栓紧固？ 。

N. His hold on her arm tightened. 他把她的胳膊抓得更紧了。

But I did, and my throat tightened. 但是我能明白, 我的喉咙发紧了. 。

Again the nerve in his head tightened. 他脑袋上的神经又一次绷紧。

Some banks tightened up on their credits. 有几家银行在信贷方面紧缩起来了。