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through a/the porthole
porthole 常与 through 搭配，表示透过舷窗观看。
She looked through the porthole at the sea.
她透过舷窗看着大海。
舷窗
先理解核心含义，再看它在真实句子里的用法。
舷窗
a window in a ship or airplane
She looked through the porthole at the sea.
她透过舷窗看着大海。
A circular window set in the hull of a ship.
船或飞机上的窗户
a window in a ship or airplane
墙壁、船或装甲车辆上的射击孔
an opening (in a wall or ship or armored vehicle) for firing through
Standing by the porthole, I watched the waves for over an hour.
我站在舷窗旁，看着海浪看了一个多小时。
The cabin has two round portholes that let in plenty of sunlight.
船舱有两扇圆圆的舷窗，阳光可以充足地照进来。
Through the airplane's porthole, we could see the city lights far below.
透过飞机的舷窗，我们能看见远处城市灯火。
porthole 常与 through 搭配，表示透过舷窗观看。
She looked through the porthole at the sea.
她透过舷窗看着大海。
也可用所有格表达，如 the ship's porthole。
The porthole of the airplane was small.
飞机的舷窗很小。
Not this
I opened the porthole in my bedroom to let in fresh air.
Use this
I opened the window in my bedroom to let in fresh air.
porthole 专指轮船或飞机上的圆形舷窗，不是普通的房间窗户；卧室窗户应用 window。
Not this
He looked in the porthole and saw the ocean.
Use this
He looked out of the porthole and saw the ocean.
表示透过窗户向外看要用 look out of，介词 in 会让人误解为查看窗子本身。
Not this
There are many porthole on the ship.
Use this
There are many portholes on the ship.
porthole 是可数名词，复数应加 -s；many 后必须用复数形式。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
圆形舷窗
The cabin had a small round porthole.
船舱有一个小小的圆形舷窗。
船上的舷窗
Water splashed against the ship's porthole.
海水溅在船上的舷窗上。
从舷窗向外看
He looked out of the porthole at the coastline.
他从舷窗向外看海岸线。
透过舷窗仔细看
The child peered through the porthole at the dolphins.
孩子透过舷窗仔细看海豚。
舷窗外的景色
We enjoyed a beautiful porthole view of the harbor.
我们欣赏到舷窗外美丽的港口景色。
Use porthole naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把 porthole 拆成 port(港口)+hole(洞)，想象船靠港时从圆圆的舷窗望出去，像港口墙上的一个小洞。
语域：neutral 常见场景：航海、航空 该词通常指船或飞机上的舷窗，多用于航海和航空语境，属于中性常用词。
None of these words rhyme exactly with 'porthole' /ˈpɒːθəʊl/. The '-hole' words share the spelling ending but have stress on the first element and a different vowel in that stressed syllable; 'hole' and 'whole' share the /əʊl/ ending but start with /h/, whereas 'porthole' has /θ/ after the stressed vowel. Use them to compare the spelling chunk '-hole' and the common /əʊl/ sound, not as true rhymes.
Dictionary facts from ECDICT, WIKTIONARY.