一邊先說了小於29度，但一定跟老美猜測/先前慣例不同，並且有意圖不單純嫌疑；另外一
邊借力使力.
這樣算不算各懷鬼胎呢？
https://web.archive.org/web/20220107033545/http://ep.nao.cas.cn/epmission/epoper
ation/201907/t20190724_505560.html
https://blog.ucsusa.org/david-wright/how-high-did-chinas-may-2013-launch-go/