A good singer who belts out a song with feeling and confidence will offer a better show than a really great singer whose lack of confidence results in a halting, self-conscious performance. In this analogy, Gemini, you are that really great singer, but you don't have the confidence right now to show your stuff in the best light. Before you get into a presentation or a performance prematurely because you are not fully ready, you need to build yourself up to the point where your performance will be to the
full extent of your potential.
一位優秀的歌手他會用感情和自信大聲地唱出一首歌，
而且他會唱得比一位出名偉大的歌手卻缺乏自信而造成猶豫、缺乏自知的演出還要好？
用這來比喻你們，雙子們，你真的是一位很棒的歌手，
但是你現在沒有自信將你最好的才能展現在聚光燈底下。
在你還沒有完全準備好之前，就進入表演或者是過早表現（表演生澀），
你需要將自己的實力建築到（累積到）一定的程度，
你才會完全地展現你的實力（大展長才）。
Ps.如果有誤譯或者是翻譯得不通順之處，請指教，謝謝。
中間打問號的地方是我翻譯得不太確定的地方，請指教，謝謝。