stepped on
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第三人称单数:steps on 现在分词:stepping on 过去式:stepped on
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stepped on
踩踏
Peanuts-Snoopy 1961-10_看史努比学英语... ... system: 系统 stepped on: 【踩踏】 too close to: 太靠近 ...
第三人称单数:steps on 现在分词:stepping on 过去式:stepped on