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be a/an underwater diver
He is an underwater diver.
他是一名水下工作者。
水下工作者
先理解核心含义，再看它在真实句子里的用法。
水下工作者
a person who works underwater
He is an underwater diver.
他是一名水下工作者。
相关中文义项：水下工作者
someone who works underwater
An experienced underwater diver often works in low visibility.
经验丰富的水下潜水员常在低能见度下工作。
The underwater diver uses special equipment to communicate with the surface.
水下潜水员使用特殊设备与水面沟通。
Many underwater divers specialize in marine archaeology.
许多水下潜水员专攻海洋考古学。
He is an underwater diver.
他是一名水下工作者。
强调职业身份。
She works as an underwater diver.
她是一名水下工作者。
He wants to become an underwater diver.
他想成为一名水下工作者。
用形容词修饰时注意冠词形式。
She is a skilled underwater diver.
她是一名熟练的水下工作者。
Not this
He is underwater diver.
Use this
He is an underwater diver.
英语中可数名词单数前需要不定冠词 "a/an"，"underwater diver" 是单数可数名词，所以必须加 "an"。
Not this
He is a diver underwater.
Use this
He is an underwater diver.
英语中复合名词的修饰语应置于名词之前，而中文里"潜水员水下"这样的表达不合适，应使用"underwater diver"的语序。
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