ponder /ˈpɔndə/ vi.& vt. 思考，考虑，沉思：ponder (on) a question 考虑问题；ponder (over) a matter 沉思一件事 We pondered many things. 我们考虑了许多事。［考句］The professor found himself constantly pondering the question: “How could anyone do these things"? 这个教授发现自己不由自主地在思索：“人如何作这些事呢”？