🧩 词语组成解析
piper
[['paipə]]
n. 吹笛者, 风笛手, 管乐器吹奏者, 管道安装工, 幼鸽
[医]磺胺甲氧吡嗪，磺胺-3-甲氧吡嗪，吡嗪磺，长效磺胺B[磺胺类抗菌药]
🗣️ 情景例句
We have to advance the building of the new school.
我们必须促进新学校的建设。
He is playing on the see-saw in the yard.
他正在院子里玩跷跷板。
The aeroplane is flying over the river.
飞机正从河上飞过。