1
be submersible
形容词作表语，说明某物能浸入水中。
This camera is submersible to 30 meters.
这款相机可浸入至30米深处。
潜水器；可潜装置
先理解核心含义，再看它在真实句子里的用法。
潜水器；可潜装置
a vessel or device designed to operate underwater
This camera is submersible to 30 meters.
这款相机可浸入至30米深处。
一种机动性有限的水下交通工具,类似潜艇但机动性较差。
An underwater vehicle with limited mobility, similar to a submarine, but less mobile.
用于水下的装置
an apparatus intended for use under water
设计用于水下操作的军舰
a warship designed to operate under water
The research team sent a small submersible to explore the shipwreck.
研究团队派了一艘小型潜水器去探索沉船。
Submersibles can reach depths that divers cannot.
潜水器能到达潜水员无法到达的深度。
They used a remote-controlled submersible to take photos of the seabed.
他们用一台遥控潜水器拍摄了海底的照片。
形容词作表语，说明某物能浸入水中。
This camera is submersible to 30 meters.
这款相机可浸入至30米深处。
形容词作定语，常修饰 pump、vehicle 等名词。
They lowered a submersible pump into the well.
他们把潜水泵放入井中。
名词用法，指可潜入水中的装置，复数形式为 submersibles。
The submersible carried scientists to the ocean floor.
那艘潜水器把科学家载到海底。
Not this
The robot can submersible in water.
Use this
The robot can submerge in water.
submersible 是形容词或名词，不能作动词；表示“下沉/潜入水中”应使用动词 submerge。
Not this
The rescue team found the submersible wreck.
Use this
The rescue team found the submerged wreck.
submersible 意为“可潜入水中的”，而这里要表达“在水下的/沉没的”，应用过去分词 submerged 作定语。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
载人潜水器
The manned submersible is used for underwater research and rescue.
载人潜水器用于水下研究和救援。
无人潜水器
The unmanned submersible can operate in waters too dangerous for divers.
无人潜水器可以在对潜水员来说过于危险的水域作业。
深海潜水器
Scientists piloted a deep-sea submersible to study creatures near the ocean floor.
科学家们驾驶深海潜水器研究海底附近的生物。
科研潜水器
The research submersible collected samples from a depth of 3,000 meters.
这艘科研潜水器在3000米深处采集了样本。
潜水泵
They lowered a submersible pump into the well to lift water to the surface.
他们把一台潜水泵放入井中，将水抽到地面。
Use submersible naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想 sub-（下方）+ mers（沉入）：能沉到水下工作的装置，就是 submersible“潜水器”。
语域：formal 常见场景：deep-sea exploration、marine research、offshore engineering 这类小型潜水器通常见于深海勘探、海洋科研或水下作业等正式/技术场合；日常口语中较少用，比较常见的是说 submarine 或 underwater vehicle。
Genuine sound match: submerge /səbˈmɝdʒ/ shares the stressed syllable /səbˈmɝ/ with submersible /səbˈmɝsɪbəl/. The -ible words (visible, possible, responsible, permissible) are spelling lookalikes ending in -ible, but their stress falls on different syllables, so they don't rhyme with submersible. Submarine is a false friend: it begins with sub- but is pronounced /ˌsʌbməˈriːn/, with the stress on -rine.
Dictionary facts from ECDICT, WIKTIONARY.