Devonian
a. 德文郡的, 泥盆纪的\\nn. 德文郡人, 泥盆纪
🗣️ 情景例句
Sit down, sit down. Have some coffee.
请坐， 请坐。喝点咖啡。
Prevention is better than cure.
预防胜于治疗。
Will you help me plant this tree, please?
你愿帮着种这棵树吗？