1. In Einstein's theory, the notion of gravity as an attractive force still holds for all known forms of matter and energy, even on the cosmic scale. 在爱因斯坦的理论中，就算是在宇宙那样的大尺度下，对于所有物质和能量的已知型态而言，重力相吸的性质依旧成立。
2. The attractive force we call gravity, Einstein famously postulated, occurs because massive bodies warp the four-dimensional fabric of the universe. 依照爱因斯坦著名的假设，那些我们称为「重力」的吸引力之所以存在，其实是因为带质量的物体弯曲了宇宙四维时空。
3. The electromagnetic iron-separator is a device using the electromagnetic attractive force to separate the ferromagnetic materials from the non-ferromagnetic materials. 电磁除铁器是一种利用直流电磁线圈的电磁吸力将铁磁物质从非铁磁物质中分离出来的磁分离设备。
英英解释
n.
1. the force by which one object attracts another
