héng / xīng / tōng / guò / xī / jī / zhōu / wéi / de / qì / tǐ / hé / chén / āi / zhú / jiàn / biàn / de / gèng / dà

恒星通过吸积周围的气体和尘埃逐渐变得更大。

A star gradually grows larger by accreting the gas and dust around it.