wèi / xīng / jìn / rù / le / dì / qiú / de / yǐn / lì / chǎng / kāi / shǐ / shòu / dào / yǐn / lì / zuò / yòng

卫星进入了地球的引力场，开始受到引力作用。

The satellite entered Earth's gravitational field and began to be affected by gravity.