外来 的中文句子和英文句子

珍珠在几种软体动物的贝壳中，围绕着一粒沙子或其他外来物质形成的一种光滑、有色泽、具有不同颜色且主要是碳酸钙的沉积物，被珍视为宝石

A smooth, lustrous, variously colored deposit, chiefly calcium carbonate, formed around a grain of sand or other foreign matter in the shells of certain mollusks and valued as a gem.


没过多久，外来移民就把当地人赶出了家园。

The indigenous population was soon displaced by the settlers.


除鲠器，食管探子纤细而可弯曲的长圆棒，其一端有一小片海绵或毛撮，用来去除喉部或食管的外来异物或给喉部或食道上药

A long, slender, flexible rod having a tuft or sponge at the end, used to remove foreign bodies from or apply medication to the larynx or esophagus.