这个箱子已经封闭了。
zhègè xiāngzǐ yǐjīng fēngbì le 。
This box has already been closed.
由于天气原因，公园今天封闭。
yóuyú tiānqì yuányīn ， gōngyuán jīntiān fēngbì 。
The park is closed today due to weather conditions.
他的心灵是封闭的，不容易接受别人的意见。
tāde xīnlíng shì fēngbì de ， bù róngyì jiēshòu biérén de yìjiàn 。
His mind is closed; it is not easy to accept other people's opinions.