重點講解：
1. be in danger of
處于…危險之中；
eg. He was in danger of losing his life.
他有失去生命的危險eyq52-=gK@Gg*)。
eg. The economy is in danger of collapse unless far-reaching reforms are implemented.
如果不實施影響深遠的改革，經濟就面臨崩潰的危險lmnuH0c9Nl~IsxhYMP。
2. knock down
（被車）撞倒；
eg. A drunk driver knocked down and killed two girls.
一個酒后駕駛的司機撞死了兩個女孩兒QR1L(Kuv~i。
eg. She run to the man who have be knock down and give him first aid until the ambulance arrive .
她跑到被撞倒的男人身邊對他進行急救直至救護車到來FEH@(5]1cFm_。
3. even if
即使；盡管；縱然；
eg. I wouldn't lose courage even if I should fail ten times.
即使要失敗十次，我也絕不灰心Pqlu_]zJIz。
eg. Don't let down even if the going is good.
即便在順利的情況下也不要松勁w1F!~Y3miK5。