launchings造句

例句与造句

1. sadly, some amateur launchings end in tragedy ? and there is frequent talk of a private firework ban
   不幸的是，外行放焰火有时会造成悲剧??而且经常有人说要禁止私放焰火。
2. known launchings accounted for only220 of the973 new objects that were sent up from earth into space that year
   那一年从地球向太空发射了九百七十三个物体，而公开的发射次数却只有二百二十次。
3. It's difficult to find launchings in a sentence. 用launchings造句挺难的