英语词汇“knock at”的读音、翻译、释义、用法及例句-智慧网

词汇	knock at
释义	knock atknock at1.■打, 捶, 敲He went upstairs and knocked at the door.他上楼敲门。Opportunity knocks at the door only once.机不可失, 时不再来。
随便看	heterogeneous polymerization heterogeneous population heterogeneous populations heterogeneous quantifier heterogeneous radiation heterogeneous ray heterogeneous ray tissue heterogeneous reaction heterogeneous reactor heterogeneous reactor type heterogeneous reservoir heterogeneous restriction heterogeneous ring compound heterogeneous rock mass heterogeneous sample heterogeneous sintering heterogeneous soil heterogeneous spherical earth heterogeneous splines heterogeneous state heterogeneousstate heterogeneous strain heterogeneous structure heterogeneous substance heterogeneous summation

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