🧩 词语组成解析
black
[blæk]
adj. 黑（色）的;黑色人种的;黑暗的;不加牛奶的;
n. 黑色;黑人;黑颜料;黑暗;
v. 使变黑;抵制;拒绝;使变黑暗;
tree
[tri]
n. 树;木料;树状图;宗谱;
vt. 把…赶上树;使处于困境;把鞋型插入（鞋内）;
fern
[fə:n]
n. <植>羊齿植物，蕨类植物;
🗣️ 情景例句
and the pain is so bad.
疼得很厉害。
I'm very well, and you?
我很好，你呢？
They plunged into the lake, and after loading their gear on an inflatable rubber dinghy, let the current carry them to the other side.
他们跳入湖中，把各种器具装上一只充气的橡皮艇，听任水流将他们带往对岸。