solid jet

例句：

1. 1. The solidrock is difficult to move.
   这块坚硬的岩石很难移动。
2. 2. The solid structure of thebuilding is impressive.
   这座建筑的坚固结构令人印象深刻。
3. 3. The solid gold bars are wortha fortune.
   这些纯金条价值连城。