a.

1. 橫渡大西洋的
   transatlantic flights

   橫渡大西洋的飛行

2. 大西洋彼岸的
   They are our transatlantic friends.

   他們是我們在大西洋彼岸的朋友。

3. 有關大西洋兩岸國家的

adj.

1. crossing the Atlantic.
2. concerning countries on both sides of the Atlantic, typically Britain and the US.
3. relating to or situated on the other side of the Atlantic; Brit. American; N. Amer. British or European.