Gradeline
巷道腰线
🗣️ 情景例句
Oh, I feel so bad.
噢， 我真抱歉。
Sorry, but she's busy then too.
对不起，那会儿她也没空。
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，