常見例句用作名詞 (n.)The bitch's cycle is divided into four periods.母犬的發(fā)情周期被分為一下四個(gè)階段。Timer must be disabled when graphing readings for extended periods.當(dāng)在觀看較長(zhǎng)周期的圖形和讀值時(shí),必須關(guān)閉定時(shí)器。 返回 periods