🧩 词语组成解析
subclass
['sʌbˌklɑ:s]
n. 亚纲，子集;子类;
石竹亚纲
🗣️ 情景例句
I just stopped by your office in the bank.
我去银行顺便到你的办公室拜访你。
Mr. Li is not afraid of working hard.
李先生不怕吃苦。
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，