nacre珍珠: pearl; gem; margarite层: I storey; tier; stratum亦: also; too称: call珍珠层: mother of pearl layer; mother of per layer; motherofperlayer; nacreous layer; nacreouslayer; pearly layer下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:珍珠层亦称，即可在微信中查询翻译
