cut off; cut up; cut through
cut off表示“隔绝”、“断绝”、“（电路）切断”、“剪下”、“砍掉”；
cut up表示“切割开来”、“切碎”、“使难过”；
cut through表示“凿穿”、“穿过”、“穿透”。
[EXERCISES]
1) The building ＿＿＿＿ our view．
2) We are going to ＿＿＿＿ the mountain to build a free way here．
3) She ＿＿＿＿＿ the cake and gave each of us a piece．
4) He ＿＿＿＿ some flowers from the bush．
Key: 1) cut off?? 2) cut through?? 3) cut up??? 4) cut off
