1
eat seaweed
seaweed 通常作不可数名词，不加 -s。
Many people eat seaweed in salads.
许多人在沙拉里吃海藻。
海草；海藻
先理解核心含义，再看它在真实句子里的用法。
海草；海藻
plant growing in the sea, especially marine algae
Many people eat seaweed in salads.
许多人在沙拉里吃海藻。
众多海藻中的任何一种,例如巨藻。
Any of numerous marine algae, such as a kelp.
生长在海中的植物,尤其是海藻
plant growing in the sea, especially marine algae
各种淡水植物和藻类中的任何一种。
Any of various fresh water plants and algae.
The beach was covered with seaweed after the storm.
暴风雨过后，海滩上覆盖着海藻。
Sushi often contains dried seaweed wrapped around the rice.
寿司常常用干海藻包裹米饭。
Some small fish use seaweed as a hiding place from predators.
有些小鱼把海藻当作躲避捕食者的藏身之处。
seaweed 通常作不可数名词，不加 -s。
Many people eat seaweed in salads.
许多人在沙拉里吃海藻。
The rocks were covered in seaweed.
岩石上覆盖着海藻。
指种类时可用 a type of seaweed，复数形式为 seaweeds。
Kelp is a type of large seaweed.
巨藻是一种大型海藻。
Not this
I like to eat seaweeds.
Use this
I like to eat seaweed.
seaweed 是不可数名词，泛指海藻时用单数形式，不加 -s。只有在表示“不同种类的海藻”时才可用复数 seaweeds。例句为泛论，故用单数。
Not this
Seaweed are good for your health.
Use this
Seaweed is good for your health.
seaweed 是不可数名词，作主语时谓语动词用第三人称单数 is，而不用 are。不可数名词没有复数概念，动词需保持一致。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
可食用海藻
Many kinds of edible seaweed are rich in vitamins.
许多可食用海藻富含维生素。
干海苔；干海藻
Dried seaweed is often used to wrap rice balls.
干海苔常用来包饭团。
海带汤；海藻汤
She made a bowl of hot seaweed soup for dinner.
她晚餐做了一碗热海带汤。
凉拌海藻；海藻沙拉
This restaurant serves a tasty seaweed salad with sesame oil.
这家餐厅供应一道美味的香油凉拌海藻。
海藻养殖
Seaweed farming provides a sustainable source of food and materials.
海藻养殖提供了可持续的食物和材料来源。
海藻提取物
The fertilizer contains seaweed extract to help plants grow.
这种肥料含有帮助植物生长的海藻提取物。
别人湖里的海草总是更绿。
This SpongeBob SquarePants line parodies the proverb 'the grass is always greener on the other side' to humorously express envy.
这句来自《海绵宝宝》的台词戏仿了谚语‘the grass is always greener on the other side’，以幽默的方式表达羡慕。
发长 /iː/ 音 (如 see, free)
Use seaweed naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
拆开看：sea（海）+ weed（杂草），海里的杂草就是海藻。
语域：neutral 常见场景：日常饮食、海洋生物、海边环境 seaweed 是中性常用词，日常谈论食物、海边见闻或一般科普时都适用；在学术或正式文体中也可使用，通常不带有明显的正式或随意色彩。
seaweed /ˈsiˌwid/ 中，weed /wid/ 和 seed /sid/ 的韵母均为 /id/，与末尾音节押韵。sea、seagull、seal 以 sea 开头，首音节相同，但不押韵；weep /wip/ 拼写以 wee 开头，但以 /p/ 结尾，读音不同。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.