他们还必须断绝与工会组织的联系。They have yet to break the link with the trade unions.他搬走了，断绝了和家人的关系。He moved away and broke off relations with the family.她断绝了和英国的往来。She severed her ties with England....
Clothing which is fire - resistant in air maybe readily ignitable in oxygen - enriched atmospheres .在空气中防火的衣服在 富氧 大气中可能很容易着火.Selenium content in Se _ enriched yeast's autolysate was determinated by adopting spectrof...