Allan Nelson, the facilities manager, warns that overenthusiastic “Rackers” would try to go swimming in them.

设备部经理Allan Nelson提醒说，要是保留喷泉，可能就会有些超级热情的工跳进去一游为快。

Oh, and whatever happens, don't get too overenthusiastic.

噢 管发生什么 都要太猴急。

Janine had been overenthusiastic, which sometimes has the force of a denial.

珍热情，这有时会带有否认的意味。

If they get overenthusiastic the immune system can start causing collateral damage – attacking healthy cells.

如果它们兴奋，免疫系统可能会开始造成附带损害——攻击健康细胞。