美 [ˈbætn daʊn]
准备应对可能的麻烦或困难：为了应对可能的麻烦或困难而做准备。
系紧、关闭或覆盖（某物）以防止其移动或损坏：用绳索、关闭或覆盖（某物）以防止其移动或损坏。
封舱
封舱
batten down 钉板条压牢; 钉上压条; 封舱..
Another expression linked to sailing is batten down the hatches .
和航海相关的另一个短语是batten down the hatches（未雨绸缪）。
But for now, batten down the hatches and get ready for some wild weather!
但目前则应未雨绸缪，为应付恶劣的天气作好准备。
The tornado is coming, so we had better batten down the hatches here and get to the cellar .
龙卷风即将来临，因此我们最好把这里的舱口封上，到地下室去。
Another expression linked to sailing is batten down the hatches.
VOA : special.2009.05.24
Many universities' first instinct will be to batten down the hatches and wait for this storm to pass.
Beware: Wireless routers are also vulnerable to hackers, so batten down the hatches.
She will need the network as she continues to batten down the hatches.