delta
A delta is a low, flat area of land where a river divides into several smaller rivers before flowing into the sea. It is often shaped like a triangle and is formed by sand and soil left by the water.
例句
3 / 5We took a boat trip through the river delta to see the local birds.
We took a boat trip through the river delta to see the local birds.
The government is working to protect the delicate ecosystem of the river delta.
The government is working to protect the delicate ecosystem of the river delta.
The delta looks like a giant green fan from the airplane window.
The delta looks like a giant green fan from the airplane window.
词族
记忆技巧
Think of the Greek letter Delta (Δ), which is shaped like a triangle. River deltas usually have this same triangular shape.
快速测验
The ____ of the river is a very fertile area where farmers grow many crops.
正确！
正确答案是： delta
例句
We took a boat trip through the river delta to see the local birds.
everydayWe took a boat trip through the river delta to see the local birds.
The government is working to protect the delicate ecosystem of the river delta.
formalThe government is working to protect the delicate ecosystem of the river delta.
The delta looks like a giant green fan from the airplane window.
informalThe delta looks like a giant green fan from the airplane window.
Sedimentation rates in the delta have decreased significantly due to the new dam.
academicSedimentation rates in the delta have decreased significantly due to the new dam.
Our logistics company manages several shipping routes through the Pearl River Delta.
businessOur logistics company manages several shipping routes through the Pearl River Delta.
词族
常见搭配
常用短语
Nile Delta
Nile Delta
delta wing
delta wing
river delta system
river delta system
容易混淆的词
An estuary is where tide meets the stream; a delta is the landform made by river deposits.
The mouth is just the opening of a river; a delta is the specific branch-like land structure at the mouth.
使用说明
Use 'delta' when specifically referring to the geographic landform at the end of a river. It is almost always used in a geographic or environmental context.
常见错误
Learners sometimes forget that 'delta' refers to the land area, not just the water itself. Also, remember to capitalize the word when it is part of a proper name like 'The Mississippi Delta'.
记忆技巧
Think of the Greek letter Delta (Δ), which is shaped like a triangle. River deltas usually have this same triangular shape.
词源
From the Greek letter 'delta' (Δ), which ancient Greeks used to describe the triangular shape of the Nile's mouth.
语法模式
文化背景
The Nile Delta in Egypt is historically famous as one of the most fertile areas in the ancient world, supporting the rise of Egyptian civilization.
快速测验
The ____ of the river is a very fertile area where farmers grow many crops.
正确！
正确答案是： delta
相关词汇
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