🧩 词语组成解析
n. 欧洲蕨
🗣️ 情景例句
Her efforts were rewarded by good results.
她的努力获得了良好的结果。
Who can best handle the problem?
谁能将那问题处理得最好？
This would solve the problem of ventilation, for if a train entered this tunnel, it would draw in fresh air behind it.
因为如果有列火车开进隧道，它就把新鲜空气随之抽进了隧道。