There is another practical reason why a landinvasion would be difficult.
解释发动一次地面攻势困难重重可能还有另外一种原因。
2
A possible invasion by Israeli forces could range from limited ground incursions to a much larger landinvasion of Gaza, home to 1.5 million Palestinians.
以色列入侵可能会是规模有限的地面行动，也有可能扩展到大规模入侵加沙——150万巴勒斯坦居民的家园。
3
We mustn't forget the plants, without whose prior invasion of the land none of the other migrations could have happened.