n.滩头阵地；立足点
If tensions were to escalate, the beachhead of Xiamen could become a battlefront. 如果紧张的关系继续加强，作为滩头阵地的厦门可能会成为前沿阵地。
They were attacked unexpectedly from both sides as soon as they landed at a beachhead. 他们一登上滩头阵地就意外地遭到两面夹攻。
