The coastline was dotted with slender palm trees, their silhouettes sharp against the sunset.

palm 指"棕榈树"，源自拉丁语 palma（手掌），因为棕榈树的叶子形状像张开的手掌。这种树常见于热带和亚热带地区，树干细长，顶部有大型羽状或扇形叶片。