潮汐主要是月亮引力引起的，那么引力更大的太阳为什么不能引起更大的潮汐？

a taxi; a cab (abbr. for 的士[di1 shi4])

to give rise to; to lead to; to cause; to arouse

the moon

sunlight; sunshine

variant of 是[shi4]

main; principal; major; primary

very; quite

and so

for what reason?

variant of 那麼|那么[na4 me5]

(pronoun) this; these

to believe; to think; to consider; to feel

a great number

quality and quantity

(coll.) a temperature (i.e. abnormally high body heat)