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 。
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 。
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 。
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 。
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 。
adj. 基本的,根本的,重要的
n. 基本原