最简单的表达:undertake the job
undertake: 承担, 担任
e.g. undertake a task 承担一项任务
take responsibility of....
be responsible for
有许多种说法:
(1)in charge of
The chief engineer was in charge of directing the building of the subway.
主任工程师担任指挥地铁的建造工作。
(2)be responsible for
The bus driver is responsible for the passengers safety.
(3)