smokeless
adj [usu attrib 通常作定语]
1 burning with little or no smoke (燃烧时)无烟的
smokeless fuel 无烟燃料.
2 free from smoke (环境)无烟的
a smokeless zone, ie an area where smoke is prohibited 禁止吸烟区.
🗣️ 情景例句
Yes. Those are excellent gifts. Who else do you need to buy for?
当然,这是都是最佳礼物。你还需要买给谁?
Two wrongs don't make a right.
两个错误不能构成一个正确。
Shortly after this the famous H. M. S. Challenger expedition established the study of the sea-floor as a subject worthy of the most qualified physicists and geologists.