The three levels of physics are different based on fulcrum, potential force, and resistance force.

物理学的三个层次根据支点、势能和阻力的不同而不同。

As the Syrian city of Idlib fell to coalition forces, the group's leadership worked to create an active and growing resistance force.

随着叙利亚城市伊德利卜落入联军之手，该组织的领导层致力于建立一支活跃且不断壮大的抵抗武装力量。