undertook

1.He undertook to be here at five.

他答应五点钟到里来。

2.The lawyer undertook the case.

该律师承办个案子。

3.He undertook the leadership of the team.

他担任了个团队的领导。

4.they undertook the adventure at their own risk.

他们从事冒险活动，后果自负。

5.a firm of builders undertook the construction work.

一家筑商承工程。

6.The lawyer undertook the case without a fee.

律师免费承办那个案件。

7.I undertook to teach the children English.

我答应教子们英语。

8.She undertook to revise my compositions.

她着手批改我的作文。

9.the firm undertook to keep price increases to a minimum.

公司承诺幅保持最低水准。

10.Next he undertook to pay off the debts.

然后, 他负责偿还债务。

11.He also undertook to earmark $235 billion in government expenditure on infrastructure projects within five years.

同时承诺在五年内投资二千三百五十亿元进行基。

12.Smolin and Gilles Brassard cast caution aside and undertook a groundbreaking experiment that would demonstrate a new cryptography based on the principles of quantum mechanics.

他们根据量子力学的原理，展示了一种新的密码技术。