"The greatest power on the earth is love !"这句话是什么意思？

请问"The Great Candy Bar Debate"是什么意思? "They read the book with great interests" ?? "New Beijing Great Olympics"前是否应该加上"The"? The Great Wall The Great Escape 长城，the Great Wall "but shi lost the final to another great tenni spalyer"什么意思 不懂这一句“in one part of the town a great many buildings were destroyed." what is The Great Depression? where is the great wall?