151. The trouble is that it is extremely difficult to be sure about radiation damage — a person may feel perfectly well, but the cells of his or her sex organs may be damaged, and this will not be discovered until the birth of deformed (畸形) children or even grandchildren.

151、問(wèn)題是很難明確輻射的傷害—一個(gè)人可能感覺(jué)良好，但他（她）的性器官細(xì)胞可能受到損傷，而且有些直到生下畸形兒甚至是畸形孫兒才會(huì)被發(fā)現(xiàn)。

152. In the end , only 7 out of 19 regular Cola drinkers correctly identified their brand of choice in all for trails. The diet-Cola drinkers did a little worse — only 7 of 27 identified all four sample correctly.

152、最后，只有7/19的傳統(tǒng)可樂(lè)愛(ài)好者正確地辨別出了他們的品牌，而低糖可樂(lè)愛(ài)好者水平更差—只有7/27的人辯出了四種混合的品牌。

153. Taste is such a subjective matter that we don't usually conduct preference tests for food.

153、口味是個(gè)非常主觀的問(wèn)題，所以對(duì)于食物我們一般不進(jìn)行偏好測(cè)試。

154. It seems simple enough to distinguish between the organism and the surrounding environment and to separate forces acting on an organism into those that are internal and biological and those that are external and environmental.

154、區(qū)分周?chē)沫h(huán)境或者有機(jī)物體，以及分辨作用于有機(jī)物的影響力是生物內(nèi)部的還是來(lái)自于外部環(huán)境的，看起來(lái)非常簡(jiǎn)單。

155. But in actual practice this system breaks down in many ways, because the organism and the environment are constantly interacting so that the environment is modified by the orgainism and vice versa (反之亦然).

155、但是在實(shí)際中這套系統(tǒng)在很多方面失敗了，因?yàn)橛袡C(jī)物和環(huán)境在不斷相互作用，所以環(huán)境在不斷被有機(jī)物修改，反過(guò)來(lái)也是一樣。