她迅速封上了瓶子。

She quickly ___sealed up the bottle.

在埃及，金字塔正在被密封，以保护古代壁画免受游客汗水的损害。

In Egypt, the pyramids are being ___sealed to protect the ancient paintings from damage caused by tourists' perspiration.

装满罐子后，他仔细地密封它，以防止空气进入。

After filling the jar, he carefully ___sealed it to prevent any air from getting in.