The cogs gear smoothly.齿轮啮合得很好.These executives, expert in every phase of corporation, became the indispensable cogs in the industrial machine.这些高层管理人员精通公司的各项业务, 成为整个工业机器中不可缺少的齿轮.Today's young people are being forge...
他脸上露出深思的表情.He had a thoughtful look on his face.这本书充满了深刻、新颖、令人深思的见解。This is a book full of profound, original and challenging insights.她有柔和的声音和深思的表情.She had a gentle voice and pensive expression....