a sow
“a sow”用于指一头未特指的母猪。
The farmer bought a sow to breed more pigs.
农夫买了一头母猪来繁殖更多的猪。
成年母猪
sows — plural of sow
雌性动物；浇道；铸块；攻城棚；雌性动物。
雌性动物。
A female animal
成年母猪
an adult female hog
引导熔融金属到模具的通道。
A channel that conducts molten metal to molds.
在模具中凝固的金属块。
A mass of metal solidified in a mold.
一种有顶棚的棚屋,过去用于围攻者填满和通过被围攻地点的壕沟,挖掘和破坏墙壁等。
A kind of covered shed, formerly used by besiegers in filling up and passing the ditch of a besieged place, sapping and mining the wall, etc.
The farmer feeds the sow twice a day.
那位农民每天喂母猪两次。
用法提示：sow 是名词，指成年母猪，在句中作宾语。
Our sow gave birth to eight healthy piglets last week.
我们的母猪上周生下了八只健康的小猪。
用法提示：sow 为名词，意为成年母猪，在句中作主语。
A sow needs extra care while she is nursing her piglets.
母猪在哺乳小猪时需要额外照料。
用法提示：sow 是名词，指成年母猪，在句中作主语。
“a sow”用于指一头未特指的母猪。
The farmer bought a sow to breed more pigs.
农夫买了一头母猪来繁殖更多的猪。
“the sow”用于特指已知或上文提到的那头母猪。
The sow is feeding her piglets.
那头母猪正在给小猪喂奶。
“sows”是sow的复数形式，泛指多头母猪。
The farm keeps twenty sows and two boars.
这个农场养了二十头母猪和两头公猪。
grammar · medium
易错句子There are five sow in the pen.
正确表达There are five sows in the pen.
sow 是可数名词，复数形式是 sows；在数词 five 后必须用复数，不能沿用单数 sow。
grammar · medium
易错句子The farmer bought a female sow.
正确表达The farmer bought a sow.
sow 本身已经表示“成年雌猪”，再加 female 会造成语义重复；直接说 a sow 即可。
grammar · medium
易错句子That big sow is a male pig.
正确表达That big sow is a female pig.
sow 指雌性猪，与 male（雄性）矛盾；如果要表达雄性猪，应用 boar。
种母猪（专用于繁殖的母猪）
The farm keeps twenty brood sows for breeding.
这家农场养了二十头种母猪用于繁殖。
产仔母猪（正在分娩或哺乳的母猪）
The farrowing sow was moved to a warm, quiet pen.
产仔母猪被转移到温暖安静的猪圈里。
妊娠母猪（怀孕的母猪）
Gestating sows need plenty of space and a controlled diet.
妊娠母猪需要充足的空间和受控的饮食。
野母猪
A wild sow led her piglets across the field.
一头野母猪带着猪崽穿过田野。
母猪的耳朵（谚语中喻指劣质材料，即巧妇难为无米之炊）
You can't make a silk purse out of a sow's ear.
母猪耳朵做不出丝钱袋（巧妇难为无米之炊）。
Choose the next layer that will help you use sows with more confidence.
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