平面交叉口
先理解核心含义，再看它在真实句子里的用法。
平面交叉口
a crossing where two or more roads meet at the same level, requiring traffic to cross or merge
The new highway includes several at-grade intersections.
新建高速公路包括几个平面交叉口。
平面交叉口
a crossing where two or more roads meet at the same level, requiring traffic to cross or merge
Use at-grade intersection naturally, then get feedback on meaning, tone, grammar, and phrasing.
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Dictionary facts from AI_SUPPLEMENT.