1
a causeway across [place]
across 后接水域、沼泽等低洼地带，表示堤道跨越的区域。
The ancient causeway across the marsh is still in use.
穿过沼泽的古老堤道仍在使用。
堤道
先理解核心含义，再看它在真实句子里的用法。
堤道
a road that is raised above water, marshland, or sand
The ancient causeway across the marsh is still in use.
穿过沼泽的古老堤道仍在使用。
高出水面、沼泽等低洼障碍物的道路,某些情况下会周期性被淹(如潮汐)。最初类似堤坝,通常开孔让水通过；现代许多则更像桥梁或高架桥
A road that is raised so as to be above water, marshland, and similar low-lying obstacles, which in some cases may flood periodically (e.g. due to tides). Originally causeways were much like dykes, generally pierced to let water through, whereas many modern causeways are more like bridges or viaducts.
高出水面、沼泽或沙地的道路
a road that is raised above water or marshland or sand
The old causeway connects the island to the mainland even at high tide.
这条古老的堤道即使在涨潮时也连接着岛屿和大陆。
We drove slowly along the causeway across the salt marsh.
我们沿着穿过盐沼的堤道缓慢行驶。
A strong wind swept across the causeway as the storm approached.
暴风雨临近时，强风横扫过堤道。
across 后接水域、沼泽等低洼地带，表示堤道跨越的区域。
The ancient causeway across the marsh is still in use.
穿过沼泽的古老堤道仍在使用。
connecting 是现在分词作后置定语，相当于 which connects。
A new causeway connects the mainland and the island.
一条新堤道连接大陆和岛屿。
along 表示沿堤道行进或分布，注意常用 the + 单数名词。
We drove along the causeway at sunset.
我们在日落时沿堤道驾车。
Not this
We walked through the causeway to the island.
Use this
We walked across the causeway to the island.
causeway 指高出水面或湿地的道路，人是在路的表面行走，所以应搭配 across、along 或 on；through 表示从某个空间内部穿过，不适用于道路。
Not this
There are many causeway in this area.
Use this
There are many causeways in this area.
causeway 是可数名词，复数形式为 causeways；汉语名词没有复数词尾，学习者容易漏掉 -s，而 many 后必须用复数。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
高架堤道
The road follows a raised causeway across the marsh.
这条路沿高架堤道穿过沼泽。
修建堤道
They built a causeway to connect the island to the mainland.
他们修建了一条堤道，把岛屿与大陆连接起来。
石头堤道
An old stone causeway leads to the castle.
一条古老的石头堤道通向城堡。
穿过堤道
We drove across the causeway at low tide.
我们在退潮时开车穿过堤道。
古老的堤道
The ancient causeway is still visible in the dry season.
在旱季，这条古老的堤道仍然清晰可见。
发长 /eɪ/ 音 (如 day, play)
Use causeway naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把 causeway 拆成 cause（因为）+ way（路）来联想：因为前面有水或沼泽，所以修一条抬高的路跨过去，就是“堤道”。
语域：neutral 常见场景：旅行指南、地理描述、历史叙述 causeway 是中性偏正式的普通名词，多用于旅行、地理或历史场景，指高出水面或湿地的堤道；日常口语中较少单独使用，通常直接说 road 或 bridge。
这些词都以 /weɪ/ 结尾，和 causeway 的 -way 读音一致；注意 causeway 拼写像 cause + way，但首音节按本词典读 /kɑz/，不要误读成 /kɔːz.weɪ/。
Dictionary facts from ECDICT, WIKTIONARY.