同根派生 keep step相關(guān)詞英漢例句用作及物動(dòng)詞 (vt.)At the beginning of their training, recruits must be taught marching in step.培訓(xùn)開(kāi)始，學(xué)員必須被教導(dǎo)要行軍步調(diào)一致。keep step更多例句