One end of the see - saw goes up while the other end goes down.跷跷板一头起来,另一头就下去.Prices see - saw according to demand.物价随需求变化而反覆涨跌.Changing demand causes a see - saw in prices.需求不断变化造成价格反覆涨跌....
野生可可树实际上是不会死的.The wild cocoa tree is effectively immortal.“ 喔, 汤姆, 你不会死的, 别这样, 汤姆 —— 啊, 别这样." Oh, Tom, you ain't dying, are you? Don't, Tom -- oh, don't.媚兰小姐也很好, 她不会死的, 思嘉小姐.No'm, Miss Melanie is all ...