1. As time went on, there was a substantial increase in seeds from pioneer plants, attesting both to agricultural intensification and to an increasingly disturbed local environment. 随着时间的推移，“先锋植物”的种子大量增加，这是农业集约化和地方环境日益受到干扰的证据。
2. Such attesting is to be used in the mainland. 证明的使用范围在内地。
3. RATING – official certificate attesting to a pilot's skill level. 评级- 证明飞行员技术水平的官方证书。
4. A.7 a letter attesting that the nationality of the carrying vessel. 运货船只的国籍已经买主批准的书信一封。
5. There might be a letter in your file attesting to your energetic and imaginative teaching. 可能我会写封信证明你生动而充满想象力的教学。
