1.Farmers are increasingly using high-tech products to lower their costs, increase the amount of crops they grow and add to their profits.
add to 加入,加到;增加
Add the second total to the third.
把第二笔总额加在第三笔总额上 。
The bad weather added to the shipwrecked sailors’ difficulties.
恶劣的天气增加了失事船只的船员们的困难 。