非可定向流形 non orientable manifold 非同寻常的是 it be extraordinary that ;it can be extraordinary that ;it may be extraordinary that ;it must be extraordinary that ;it should be extraordinary that ;it will be extraordinary ...
双语例句
1
Whereas it is always better to be sighted than not, people who have lost vision do have certain extraordinary abilities thatcan give them advantages over sighted people.
然而看得见总是更好的，但失去视力的人们也需要特定的超常能力来做得赶得上拥有视力的人。
2
But it might argue that California does not face the "compelling and extraordinary conditions" the law requires before stricter standards canbe imposed.