Ferns
n. 蕨类；蕨类植物（fern的复数形式）
🗣️ 情景例句
How long?
多久？
He's on the phone.
他在打电话。
As the neighbours complained of the noise, my husband spent weeks training him to press his paw on the latch to let himself in.
由于邻居们对狗叫很有意见，所以我丈夫花了几个星期的时间训练它用脚爪按住门闩把自己放进来。