echelon antenna
基本释义
梯形天线
实用场景例句
校园生活
There is a strict rule against guns on school ground.
学校规定禁止携带枪支。
The police officer showed a gun to the thief.
警察向小偷出示了枪。
The movie showed a scene with a gun fight.
电影里有一场枪战场景。
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