indissoluble
🇺🇸
/ˌɪndɪˈsɑːljəbl/
🇬🇧
/ˌɪndɪˈsɒljəbl/
something that cannot be broken or separated
Their bond was so strong that it became an indissoluble partnership.
他们的纽带如此牢固,以至于成为一种不可分割的伙伴关系。