1. discrimination n.歧视; 辨别,区别; 辨别力
例句:He went on record as opposing racial discrimination.
他公开表示反对种族歧视。
2. attend vi.出席; 致力于,献身于
例句:He is really too busy to attend to anything else.
他实在太忙, 无法分身。
3. insane adj.疯狂的; 精神病的
例句:He must have been insane to sell his car for the mud.
他竟把汽车当废品卖掉,准是疯了。
4. explore vi. 勘查, 探测, 勘探
例句:The deep sea is the last frontier left to explore.
深海是尚待探索的最后一个领域。
5. involve vt.包含; 使参与,牵涉
例句:It would involve all Rome in a fearful strife.
这将使整个罗马卷入一场可怕的战争。