🧩 词语组成解析
shield
[ʃild]
n. 盾;护罩;盾形奖牌;保护人;
vt. 保护;掩护;庇护;给…加防护罩;
fern
[fə:n]
n. <植>羊齿植物，蕨类植物;
🗣️ 情景例句
Thanks, Mom.
谢谢，妈。
I tried to call you, but the line was busy.
我试着给你打电话，但老占线。
There is only one difference between an old man and a young one:
老年人和年轻人之间仅仅有一个不同：