避免亲近 meaning in English

keeat arm's length
keep at arm's length
on an arm’s length basis

To avoid inbreeding with the less adventurous males , female seals would travel up to 35 metres yards to find a fitter mate to give the next generation the best chance of surviving . hoffman and his team believe the females size up potential mates by assessing their physique , behaviour and even their smell
为了避免亲近交配，为了给下一代最好的遗传基因，雌海狗会游到35米远的地方寻找更适合的配偶。霍夫曼博士和他的研究小组相信，雌海狗通过评估雄海狗的体型行为甚至体味来判断是否是有可能合适自己的配偶。