🧩 词语组成解析
alder
['ɔ:ldə]
n. 桤木;
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）;
🗣️ 情景例句
I love keeping animals for companionship.
我喜欢养动物为伴。
I went bowling last night.
我昨晚在打保龄球。
while our own compulsory school attendance became law in Germany in 1642,
而我们的义务教育成为法律在德国是在1642年，