同心的英文：
(N) Tongxin (place in Ningxia)

参考例句：

They went off arm in arm.
我们在工作中同心协办，相互配合。

Successive wave fronts in this case form a series of concentric spheres
相继波前形成了一系列的同心球面。

A good friend is one soul in two bodies.
挚友如异体同心。

A true friend is one soul in two Bodies. -- Aristotle
挚友如异体同心。--　亚里士多德

I pour you the farewell wine as you set out from the capital -- Soon I shall be left behind here by my bosom friend.
置酒长安道,同心与我违

The concentric orifice is most frequently used type
同心圆孔板是最经常使用的形式。

The concentric orifice is most frequently used type.
同心圆孔板是最经常使用的形式。

A region of low pressure with roughly concentric isobars is known technically as a cyclone.
具有大致同心的等压线的低压区在技术上称为气旋。

The spherical surfaces defined by several arbitrarily chosen points are all concentric.
凡是由几个任意选点确定的球面都是同心面。

The background was comprised of three homocentric white circles.
背景由三个同心白色圆形线条组成。

place是什么意思：
n. 住所；座位；场所；地方；名次；社会地位；位；职位
v. 放置；投资；任命；名列前茅

To place on or as if on a blacklist.
把…列入或似把…列入黑名单

A place for everything, and everything in its place.
物物齐备，井井有条。

The soupspoon is placed on the right - hand side of the place setting .
汤匙放在餐位餐具的右手边。

ningxia是什么意思：
宁夏(位于中国西北部)

Although situated in an outlying part of the country, Ningxia is richly endowed by nature, deserving fully the name Sai' Wai' Jiang' Nan or Lush Southern Country Beyond the Great Wall.
宁夏虽地处边远，自然条件却并不差，是名符其实的“塞外江南”。