to buck up
举一反三
- Then the rope was pulled again and Buck had to let go. A: give up B: leave C: move along D: go away
- The meaning of the waking dream is that ______ . A: Buck likes day dreaming B: Buck is worried about his future C: Buck finds comfort in dreams by escaping the harsh reality D: Buck is stepping closer to the call of the wild
- “More buck, more bang” means __________.
- Buck电路可以空载运行（ ）
- 若下图为Buck电路，则