Bitangent
雙切線(的)
??? 情景例句
Please don't do it without asking.
未經允許請不要那么做。
An old poacher makes the best keeper.
老偷獵者是最好的看守人。
Even in his philosophical probings he cannot go behind these stereotypes;
人甚至在哲學領域的探索中，人們也無法超越這些定型的框框。