如果物体处于静止状态或作匀速直线运动,只要没有外力作用,物体将保持静止状态或匀速直线运动状态。
The challenge of climate change requires collaboration, not confrontation.
要善于辨别投资机会和陷阱,不要盲目追随市场热点。
The greatest untapped resource in the global economy is the full participation of women.
The future of energy lies in diversification—no single source will meet all our needs.