🧩 词语组成解析
fern
[fə:n]
n. <植>羊齿植物，蕨类植物;
🗣️ 情景例句
That's great. I'll come back right after the formalities.
那太好了。手续办完后我就回来。
Poli-sci major
专攻政治社会学
Work on it had begun before my sister left.
这栋房子在我姐姐离开之前就已动工了，