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公司员工跳进去一游为快。

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

噢 不管发生什么 都不要太猴急。

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

如果他们过于热情，免疫系统就会开始造成附带损害——攻击健康细胞。