| 签名 | qiān míng | to sign (one's name with a pen etc); to autograph; signature |
| 工具 | gōng jù | tool; instrument; utensil; means (to achieve a goal etc) |
| 推荐 | tuī jiàn | to recommend; recommendation |
| 签名 | qiān míng | to sign (one's name with a pen etc); to autograph; signature |
| 内 | nèi | inside; inner; internal; within; interior |
| 测 | cè | to survey; to measure; to conjecture |