Olefine
[化] 烯烃; 链烯烃
🗣️ 情景例句
and they always will be.
将来也永远会如此。
She gaped in surprise when Robert arrived.
当罗伯特来的时候，她吃惊得长大嘴巴呆住了。
They have also assumed that all animals, and probably other organisms such as trees,
人们不但认识到所有的动物，大概也认识到所有的有机物，如树木，