他巧妙地搪塞了过去，其实他担心的是： 这个秘密不知道是否能让他们在这岛上呆上一阵子，所以他有意识地守口如瓶，不到万不得已，不亮出这张王牌。

• He made a plausible excuse; but his real reason had been the fear that not even the secret would keep them with him any very great length of time, and so he had meant to hold it in reserve as a last seduction.