It also says there are generally positive trends on economic development, the rule of law, the provision of government services and Iraq's effort to expand its regional diplomatic contacts.

VOA: standard.2009.03.31

Coulomb's law says the negative will be attracted to the positive, and the atom will collapse.

库仑定律说,负电荷会被吸引到正电荷上来，原子会坍塌。

麻省理工公开课 - 固态化学导论课程节选