Pgs
abbr. predicted ground speed 预测地面速度
🗣️ 情景例句
A grandfather clock would look great in the den.
休息室里放一座落地钟会很漂亮的。
To trip and fall
绊倒
Alternatively, if the star were small, the life-supporting planet would have to have a close orbit round it and also provide the perfect conditions for life forms to develop.
反之，如果恒星很小，维持生命的行星就要在离恒星很近的轨道上运行，而且要有极好的条件才能使生命得以发展，