1940, in reference to German military tactics in World War II, from beach (n.) + head (n.), on the model of bridgehead, but the image doesn't quite work.
权威例句
1. The troops were landed at a beachhead.
部队被送到滩头堡登陆.
2. 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.
3. Commander Tazewell Shepard , the naval aide , gave a report , precise and bleak , on the beachhead.
海军副官 泰兹韦尔·谢泼德 中校报告了滩头阵地确实的又不妙的情况.
4. General Lucas confined himself to occupying his beachhead and having equipment and vehicles brought ashore.
卢卡斯将军专心致志于占领滩头堡,并使装备和车辆登岸.
5. The town became a beachhead in the campaign to ban smoking outdoors.