1.scatter over 分散在...
The civil war forced Chinese to scatter over the world.
内战迫使中国人流落全世界。

2.fill with 塞满
When we inhale, our lungs fill with air, which press the diaphragm downward.
当我们吸气时，我们的肺会充满空气，空气会把隔膜往下压。

3.fan out 成扇形散开
Shaped like a palm tree, its "branches" fan out into the Persian Gulf.
岛屿呈现棕榈树状，它的“树枝”向波斯湾呈扇形展开。