地心引力

Earth; ground; soil; land; place; region; used as a particle to link adverbs to verbs or adjectives.

The physical heart; the mind or intellect; feelings or emotions; the center or core of something; intention or will.

to pull or draw (a bow); to lead or guide; to attract; to involve or implicate; to extend or stretch; to recommend or select.

Power; force; strength; ability; effort; influence; energy; to exert oneself; surname Li.