Let the sky fall.和When the sky falls.为什么fall一个不加s一个加s?他们的意思有什么不同?时态怎样?

Let the sky fall.和When the sky falls.为什么fall一个不加s一个加s?他们的意思有什么不同?时态怎样? “Let the sky fall”怎么没有S?《Skyfall》里面有一句歌词是“Let the sky fall”.请问各路大神,为什么不用falls?是这句歌词写错了吗? Why do stars fall down from the sky? let it fall 和 fall it的区别 The raindrops fall ____the sky and then fall down _____the ground. The raindrops fall ____the sky and then fall down _____the ground. fall it 和let it fall 这两fall 位置不一样 是两种动词吗 Let me fly by wings over the sky翻译中文 Angle with m和 Let me fly just like brid in the my free sky forever分别是什么意思啊? let us fall in love in the dream!咩意思? The sky stands high in the fall.什么歌?还是诗?还是文学?来自哪里? Sometimes when you think the sky is about to fall down,you might be standing tilted!. Sometimes when you think the sky is about to fall down,you might be standin 英语谜语题 It's fall from the sky.It's cool. It'( ) we fall down from air ,but our nativeplace is not in the sky . he saw a star fall from the sky and dissappeared 这里fall是不是错了这里fall的时态是不是错了 disappeared 怎么 没用一般现在时 ‘let me fall’是什么意思? sky the