同根派生

• underground railroad相關詞

英漢例句

用作名詞 (n.)

• There was not an underground in Beijing before.
  北京從前沒有地下鐵道。
• The construction of underground railways has eased traffic pressure on the ground.
  地下鐵道的修建減輕了地面交通的壓力。

• underground railroad更多例句