odorless bitumen

• 无臭沥青

odorless bitumen的用法和样例：

例句

1. Polypropylene is usually colorless solid translucent, odorless drug-free.
   聚丙烯通常为半透明无色固体，无臭无毒。
2. They are odorless and flavorless sedatives which can be easily mixed into a drink or punchbowl.
   他们是无味无臭和镇静剂可轻易混入饮料或潘趣酒杯。