🧩 词语组成解析
laboratory
['læbrə'tɔri]
n. 实验室;实验课;研究室;药厂;
🗣️ 情景例句
Then an adult must sign for you.
那就必须有一位成年人来替你签字。
I'm afraid all my efforts were in vain.
我担心我的努力全白费了。
The Native Americans caught and trained them and were then able to use them to carry their goods when they travelled from one camping ground to another.
美洲土著人捕捉野马，加以驯服。