He said that Huawei's trainers are excellent and inexpensive high-quality telecommunications equipments are very popular among the people.
他谈了自己的感受：华为授课的老师非常出色，质优价廉的电信设备深受群众欢迎。
Food is an excellent example of this and a frequent primary reinforcer used by trainers.
食物是培训初级强化物使用的很好的例子。
Food is an excellent example of this and a frequent primary reinforcer used by trainers.
食物是培训初级强化物使用的很好的例子。
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