1、The nearest star to our own is Proxima Centuari and it lays just over 4 light-years away.
離太陽(yáng)最近的恒心是半人馬座（即比鄰星），它與太陽(yáng)相距4光年。

2、The next-closest known star to the Sun is Proxima Centauri, located 4.2 light years away.
距太陽(yáng)第二近的恒星是比鄰星，距離為4.2光年。

3、The nearest star, Proxima Centauri, has a planet orbiting it not much bigger than Earth.
有一顆大小與地球相近的行星圍繞著距離太陽(yáng)最近的恒星——半人馬座比鄰星運(yùn)轉(zhuǎn)。