source of strength in self-confidence
... the source of strength doctrine 力量之源原则 source distribution of constant strength 等强度源分布 source of strength in self-confidence 力量来源于自信 ...
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source of strength in self-confidence
自信是力量的源泉
以上为机器翻译结果，长、整句建议使用 人工翻译 。