英语语法分析

Bracken fern has been spreading from its woodland strongholds for centuries, but the rate of encroachment into open countryside has lately increased alarmingly throughout northern and western Britain.

蕨类植物已经从它的林地据点向外蔓延了几个世纪，但是最近在整个英国北部和西部，蕨类植物侵入开阔乡村的速度却惊人地增长。

It's a sign of the encroachment of commercialism in medicine.

这是营利主义入侵医学界的一种迹象。

《柯林斯英汉双解大词典》

"We still need to control the encroachment of other development," he said.

“我们需要控制各种开发活动的侵入，”他说。