1
a/an + electrical circuit
用于泛指任何电路。
An electrical circuit must be closed for current to flow.
电路必须闭合，电流才能流动。
电路
electrical circuits — plural of electrical circuit
先理解核心含义，再看它在真实句子里的用法。
电路
a closed path through which an electric current flows
An electrical circuit must be closed for current to flow.
电路必须闭合，电流才能流动。
电路。
An electric circuit.
You should turn off the power before checking any electrical circuit.
你在检查任何电路之前应该关闭电源。
A short in the electrical circuit caused the lights to flicker.
电路短路导致灯光闪烁。
He learned how to build a simple electrical circuit in science class.
他在科学课上学了如何搭建一个简单的电路。
用于泛指任何电路。
An electrical circuit must be closed for current to flow.
电路必须闭合，电流才能流动。
用于特指某个具体的电路。
The electrical circuit in this device is designed for low power.
这个设备中的电路是为低功耗设计的。
表示在电路中的位置或用途。
Resistors are commonly used in an electrical circuit to limit current.
电阻器常用于电路中以限制电流。
Not this
I need to fix a electrical circuit.
Use this
I need to fix an electrical circuit.
因为“electrical”以元音音素开头，所以应用冠词“an”而非“a”。
Not this
He connected the wire on the electrical circuit.
Use this
He connected the wire to the electrical circuit.
表示连接导线到电路上时，介词应用“to”而非“on”。
Choose the next layer that will help you use electrical circuits with more confidence.
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Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
Use electrical circuits naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
可数名词短语：电路
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.