| 防 | fáng | to protect; to defend; to guard against; to prevent |
| 破解 | pò jiě | to break (a bond, constraint etc); to explain; to unravel; to decipher; to decode |
| 电报 | diàn bào | telegram; cable; telegraph; CL:封[feng1],份[fen4] |
| 混淆 | hùn xiáo | to obscure; to confuse; to mix up; to blur; to mislead |