🧩 词语组成解析
quad
[kwɔd]
n. 四倍;空铅;（大学的）四周有建筑物围绕的方院;四胞胎之一;
vt. 在…填补空铅;
laser
['lezɚ]
n. 激光;激光器，镭射器;
🗣️ 情景例句
What do your parents do?
你父母是做什么的？
The people at the party were worried about Janet because no one was aware of where she had gone.
参加聚会的人们都为珍妮物担心，因为没人知道她去哪里了。
We were developing too much waste.
生产出来的废品太多了。