1
the Po
Po 是专有名词，表示“波河”，首字母要大写，前面通常加 the。
The Po is the longest river in Italy.
波河是意大利最长的河流。
波河
先理解核心含义，再看它在真实句子里的用法。
波河
a European river, flowing into the Adriatic Sea
The Po is the longest river in Italy.
波河是意大利最长的河流。
The Po is the longest river in Italy.
波河是意大利最长的河流。
Many towns along the Po were flooded after the heavy rain.
大雨过后，波河沿岸的许多城镇被洪水淹没。
We crossed the Po by ferry during our bike trip.
骑自行车旅行时，我们乘渡轮横渡了波河。
Po 是专有名词，表示“波河”，首字母要大写，前面通常加 the。
The Po is the longest river in Italy.
波河是意大利最长的河流。
也可以把 River 放在 Po 前，说 the River Po，与 the Po 意思相同。
The River Po flows into the Adriatic Sea.
波河流入亚得里亚海。
Po 可作定语修饰 Valley 等地理名词，构成地名。
The Po Valley is a major farming area.
波河平原是一个主要的农业区。
Not this
Po is the longest river in northern Italy.
Use this
The Po is the longest river in northern Italy.
英语中河流名称前通常要用定冠词 the（如 the Thames、the Po），而汉语没有冠词，学习者容易漏掉；补上 the 才符合英语对河流专有名词的用法。
Not this
The Po flows in northern Italy.
Use this
The Po flows through northern Italy.
表示河流“流经”某一区域时，flow 后接 through，而不是 in；in 只表示在某范围内部，缺少“经过、穿过”的含义，所以要用 through。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
波河
The River Po flows eastward across northern Italy.
波河自西向东流过意大利北部。
波河平原
The Po Valley is one of Europe's most productive agricultural areas.
波河平原是欧洲最富饶的农业区之一。
波河三角洲
The Po delta is an important wetland for many bird species.
波河三角洲是许多鸟类的重要湿地。
波河流域
Heavy rain flooded the entire Po basin.
暴雨淹没了整个波河流域。
Use po 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：Po河在意大利，发音像中文'泼'，想象河水泼溅的样子，首字母P大写。
语域：neutral 常见场景：geography、travel、history 波河（意大利）是地理专有名词，多用于地理、旅行或历史话题，语气通常中性。
Genuine rhymes with /pəʊ/: go, no, so, pro, toe, though. Beware lookalikes ending in -o that do not rhyme: to /tuː/, do /duː/, who /huː/.
Dictionary facts from ECDICT, WIKTIONARY.