China 's ming dynasty drives firearms technology forwards .

在中国的明代，火器技术继续向前发展。

The insects can fly forwards and backwards at up to 18 mph

蜻蜓这类昆虫可以向前和向后以高达每小时18英里的速度飞行

Aside from howard , chris bosh and carlos boozer , team usa doesn 't have any other true power forwards or centers .

除了霍华德，克里斯波什和卡洛斯布泽尔，美国队并没有其他真正意义上的大前锋和中锋。

Going forwards is thus not the same as going backwards , and time 's arrow really does exist .

因此，时间向前和倒退并不是对等的，时间之箭也是的确存在的。

General petraeus says that , after years of being on the back foot , nato and its afghan allies are pressing forwards .

彼得雷乌斯将军说，经过数年的磕磕绊绊，北约和阿富汗的盟友正奋力向前。