a lot of的高级表达
plenty of、a (large)number of 、a large amount of、a (great) deal of、a (large) quantity of。
1. Numerous\n2. Plentiful\n3. Abundant\n4. Copious\n5. Myriad\n6. Countless\n7. Multitudinous\n8. Innumerable\n9. Profuse\n10. Excessive\n11. Ample\n12. Bountiful\n13. Overflowing\n14. Prolific\n15. Generous\
n16. Substantial\n17. Extensive\n18. Voluminous\n19. Sweeping\n20. Comprehensive.