Cholera multiplied in the air without reason. A cloud of dangerous gas would float around until it found its victims.
People absorbed it with their meals.
2023/1/25
(3) aiming to kill or destroy 意在杀死的; 不共戴天的: a deadly enemy 不共戴天的敌人 2)deadly adv. (1) very 极度; 非常; 十分 deadly serious 十分认真 (2) like death 死一般地
John Snow was a well-known _d_o_c_to_r_ in London in the _1_9_th__ century. He wanted to find the _c_a_u_s_e_ of cholera in order to _d_e_fe_a_t_ it. In 1854 when a cholera _b_r_o_k_e_ out, he began to gather information.
He _m__a_r_k_e_d__ on a map where all the dead people had lived and he found that many people who had drunk the dirty water from the _p_u_m__p_ died. So he decided that the polluted water carried cholera. He suggested that the _s_o_u_r_ce__ of all water supply be _e_x_a_m__in_e_d__ and new methods of _d_e_a_l_in__g_ with polluted water be found. Finally, “King Cholera” was defeated.
