hold on the chain

基本解释

However, the United States' hold on the first island chain is beginning to be pried loose anyway.
然而，不論如何，美國對第一島鏈的控制正在開始被迫放松。
The PCC is a collection of loose alliances with a weak chain of command that needs “symbolic acts” to enforce contracts and hold on to allies.
這是因爲首都第一司令部是一個松散竝非強有力的聯盟，需要一些“象征行動”來維持和加強他們的聯盟。
Infosys, he explained, could hold a virtual meeting of the key players from its entire global supply chain for any project at any time on that supersize screen.
他解釋說，整個全球供應鏈任何環節的核心人物都能隨時開始會議，就在這個驚奇的屏幕上。