Periderm
n. 周皮\\n[医] 皮上层(胚); 表皮
🗣️ 情景例句
Thank you.
谢谢 。
I driank a cup of tea.
我喝了一杯茶。
Because the equipment for adding sound to films had not yet been developed.
因为给电影配音的设备还没有研制出来。