“关紧”怎么读

窗户都关紧了，百叶窗都拉下了，门也闩上了。The windows were closed and shuttered, the door was barred.睡觉时不要将所有的窗户都关紧.Do not fasten all the windows up while you sleep.窗子关紧了 吗 ?Is the window fast?...

“关紧”的英语可以翻译为：fasten，fast，fasten up ...