n.密封性，坚固，紧密

The tightness of the screws needs to be checked regularly to ensure stability.
螺丝的紧固程度需要定期检查，以确保稳定性。
She felt a tightness in her chest whenever she thought about the deadline approaching.
每当她想到截止日期临近，就会感到胸口一阵紧绷。
The tightness of the bandage should be just right, not too loose or too tight.
绷带的松紧度应该恰到好处，既不过松也不过紧。
There was a sense of tightness in the room as everyone waited for the announcement.
大家等待公告时，房间里有一种紧张的气氛。
After the workout, he experienced muscle tightness in his legs and had to stretch.
锻炼后，他的腿部肌肉感到紧绷，不得不进行拉伸。
The painter applied another coat of varnish, enhancing the tightness and shine of the surface.
画家又涂了一层清漆，增强了表面的紧密度和光泽。
The tightness of the script ensured that the play flowed smoothly from scene to scene.
剧本的紧凑确保了剧目从一幕到一幕流畅进行。
Due to the tightness of the schedule, we had to work overtime to complete the project.
由于时间安排得很紧，我们不得不加班来完成项目。
He complained about the tightness of his new shoes, which caused blisters on his heels.
他抱怨新鞋太紧，导致脚后跟磨出了水泡。
The therapist recommended exercises to alleviate the neck tightness caused by prolonged computer use.
理疗师建议做一些练习来缓解长时间使用电脑导致的颈部紧绷。