Some plant has neight root nor leaf .
有些植物既无根又无叶。
Neight party may assign , directly or indirectly , all or part of its rights or obligations under this agreement without the prior written consent of the other party .
非经另一方事先书面同意，任何一方不得直接或间接转让其在本协议项下的全部或者部分义务。
neight