self madeadj.自制的selfn.自己；本性；自我pron.我自己；你自己；他或她自己adj.始终如一的；同一类型的；性质不变的v.近亲繁殖；自花授粉self-priming electromagnetic valve自吸电磁阀self--adaptive genetic algorithm遗传算法self-contained water-source well自备水源井self-embedded green retaining wall自嵌式植生护岸self-efficacy of distance learning远程学习效能感self - excited vibration frequency自振频率self-shifting synchronizing clutch自动移位同步离合器self-propelled electric locomotive自备电源式机车self-exciting modulating amplifier自激式调制放大器self-generation and self-storage自生自储

1. Selfconfidence is the first step to make a success.
   自信是走向成功的第一步。
2. I always have been deficient in selfconfidence and decision.
   我向来缺乏自信和果断。