on rare occasions meaning in English
很少，不常
难得, 不常, 偶尔
Examples
- The majority of aberrations are sporadic although on rare occasions a chromosomal disorder is directly inherited .
尽管偶尔可见一种染色体疾病是直接遗传的，但是大量的染色体异常是散发的。 - Only on rare occasions now the old fire glowed in her again
她只是一位强壮美丽和多子女的母亲，难得看到她从前的热情的火焰。 - On rare occasions , these bird viruses can infect other species , including pigs and humans
这些禽鸟病毒极不容易传染给其它物种，包括猪和人类。 - Fixed an issue where on rare occasions vehicle ' s bonnets / wings would be invisible on entering a race
修正了进入比赛时有很少的情况会看不到汽车的罩（ ？ ）尾翼的问题。 - " we teach people how to respect it and , on rare occasions , have it in moderation , " he said
他说： "我们教人们如何重视碳水化合物，并在个别情况下适当摄入碳水化合物。