Buna
n. 丁钠橡胶\\n[建] 布纳(橡胶), 丁(二烯)钠(聚)橡胶
🗣️ 情景例句
Oh, Somebody's at the door. I have to go.
哦，有人来了，我得去开门。
Adversity makes a man wise,not rich.
患难能使人聪明，但不能使人富有。
Today Native Americans express their anger over this business deal.
今天，美国的土著人对这桩买卖仍然愤愤不平。