重点讲解：
1. break down 分解；将…分成若干部分；
例句：The next step is to use bacteria to break down the algae into natural gas and different chemicals.
下一步就是用细菌把海藻分解成天然气和不同的化学物质uSgW|L1qgs3OHM8;n.(%。
2. interfere with 妨碍；冲突；抵触；
例句：It will seriously interfere with the progress of the work.
这将严重妨碍工作的进行CwT%w9E|KDqiU4fl4F。
3. build up （使）积聚；（使）逐渐增加；
例句：Don't let your resentment build up.
别让你的怨恨郁积起来wH8-ae]xd~i=iPP。
4. clear out 清除；
例句：Our old stock has been entirely cleared out.
我们旧的存货已全部出清2XG,n1oGUs。
5. be involved in 卷入的；参与的；与…有密切关联的；
例句：He was proved to be involved in the case.
他被证明与这件事有牵连|why@YFX)TOm*vF@N。