🧩 词语组成解析
silver
['sɪlvɚ]
n. 银;银币;银制品;银色;
adj. 银制的;像银的;银色的;银白色的;
vt. （在某物上）镀银;使具有银色光泽，使变成银色;
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
We tested it last week on twelve- to fifteen-year-olds,
我们上一周曾在十二岁至十五岁的孩子中试过这项游戏，
I usually get up at 8 o'clock.
我通常8点起床。
The geologist needs to know what rocks the drill has reached,
地质学家需要知道钻头已经到达什么样的岩层，