biplane
n
early type of aeroplane with two sets of wings, one above the other 双翼飞机. Cf 参看 monoplane.
🗣️ 情景例句
Don't thank me.
别谢我。
Soon up, soon down.
升得高,落得快。
The parquet floors shone like mirrors; highly polished silver was displayed in gleaming glass cabinets; even my uncle's huge collection of books was kept miraculously free from dust.