Graduate students and postdocs, who often are working on their lab head's grant, may have no choice if their supervisor or another senior colleague opposes sharing.
2017年12月六级真题(第二套)阅读 Section B
柯林斯高阶英汉双解学习词典释义
VERB
反对;阻挠
If you oppose someone or oppose their plans or ideas, you disagree with what they want to do and try to prevent them from doing it.