1
shoal (intransitive, water)
用于水体或航道变浅，常接副词或介词短语。
The river shoals near the bend.
这条河在拐弯处变浅。
聚集；成群
先理解核心含义，再看它在真实句子里的用法。
聚集；成群
to collect in a shoal; to throng
The river shoals near the bend.
这条河在拐弯处变浅。
到达浅水区。
To arrive at a shallow (or less deep) area.
聚集成群；成群结队。
To collect in a shoal; to throng.
使变浅；到达更浅的部分。
To cause a shallowing; to come to a more shallow part of.
变浅。
To become shallow.
shoal
Base
原形
shoals
3rd person
第三人称单数
shoaling
-ing
现在分词
shoaled
Past
过去式
shoaled
Past participle
过去分词
The river shoals near the bend.
河流在弯道附近变浅。
The boat shoaled as it approached the sandbank.
船靠近沙洲时搁浅了。
The water has shoaled since the drought began.
干旱开始以来，水位已经变浅了。
规则动词，表示变浅或形成浅滩。
The small fish shoal near the surface every morning.
小鱼每天清晨在水面附近成群聚集。
These herring are shoaling in the cold northern waters.
这些鲱鱼正在寒冷的北方水域成群聚集。
The anchovies shoaled together as soon as the seal approached.
海豹一靠近，鳀鱼就立刻聚集成群。
用于水体或航道变浅，常接副词或介词短语。
The river shoals near the bend.
这条河在拐弯处变浅。
用于使某处的水体变浅。
The storm shoaled the channel.
风暴使航道变浅。
用于鱼类成群游动，常接时间或地点状语。
Herring shoal in the spring.
鲱鱼在春天成群游动。
Not this
The river becomes shallow in summer.
Use this
The river shoals in summer.
shallow 是形容词，表示'浅的'；而这里需要动词 shoal，表示'变浅'。
Not this
The fisherman shoaled the fish.
Use this
The fish shoaled.
shoal 表示'鱼群成群游动'时是不及物动词，不能直接接宾语。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
成群聚集
These small fish shoal together for safety.
这些小鱼聚集在一起以求安全。
水变浅
The water shoals gradually toward the shore.
水向岸边逐渐变浅。
使航道变浅
The shifting sand has slowly shoaled the channel over many years.
多年以来，移动的沙子慢慢使航道变浅。
Use shoal naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记忆联想：shoal 与 shallow 都以 sh- 开头，浅水(shallow)中的鱼群聚成 shoal；船驶入浅滩也用它。
语域：mixed 常见场景：海洋学/航海、鱼类生物学/渔业、文学/正式书面语 shoal 作动词时，通常用于正式或专业书面语境：可表示鱼群聚集，也可表示水域变浅或船只驶入浅水区。日常口语较少用，正式程度依语境不同而变，海洋学、航海或文学描写中比较常见；日常表达多用 become shallow、gather in a group 等。
不及物时指变浅或鱼群聚集，及物时指使变浅。
Dictionary facts from AI_FALLBACK, ECDICT, OCTANOVE, WIKTIONARY, WORDNET.