| 深入 | shēn rù | to penetrate deeply; thorough |
| 探究 | tàn jiū | to investigate; to delve; to probe; to enquire into; to look into |
| 封装 | fēng zhuāng | to encapsulate; to enclose; to wrap; to seal inside |
| 电报 | diàn bào | telegram; cable; telegraph; CL:封[feng1],份[fen4] |
| 苹果 | píng guǒ | apple; CL:個|个[ge4],顆|颗[ke1] |