Bitumens
n. [材] 沥青（bitumen复数）
🗣️ 情景例句
He's the publisher of the Carlson Publishing Company.
他是Carlson出版公司的老板 。
The doctor said I looked worried and nervous.
医生说我看起来太忧郁和紧张了。
The hovercraft travelled first over the water, then mounted the beach,
气垫船先是在水面上行驶，后又登上海岸，