常見例句雙語例句Not until the 1920s when cars and trucks became affordable and roads improved, did migratory beekeeping begin to catch on.直到19世紀(jì)20年代當(dāng)汽車和卡車比較經(jīng)濟(jì)和道路改善， 遷移養(yǎng)蜂開始流行。 返回 migratory beekeeping