Foramina caecum
[医] 盲孔
🧩 词语组成解析
pl. 孔\\n[医] 孔
n. 盲肠\\n[医] 盲肠; 盲端
🗣️ 情景例句
Please do the work at your own convenience.
请在方便时把这事做一做。
What time does the first train to Boston leave?
第一班去波士顿的列车什么时间开出呢？
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，