Pek
[化] 聚醚酮
🗣️ 情景例句
Help yourself to celery and carrots and other vegetables.
请你们自己盛芹菜， 胡萝卜 和其他蔬菜。
Alone, he brooded over his mistake.
她常常独自沉思自己的过失。
Ready? Go! Mr. Hu shouted, and the boys started to run.
“预备--跑！”胡先生喊道，男孩子们开始跑。