I further undertake not to be engaged in any form of employment, business or occupation whilst in Singapore without the written consent of the Controller of Immigration.

我还保证如果没有移民管理部分的书面批准，不会以任何形式在新加坡的任何公司工作。

youdao

Replacement is guaranteed if the products are not up to the standard.; We undertake to replace the specifications.

产品不合规格，保证退换。

《新英汉大辞典》

They have failed to undertake a serious restructuring: the current rescue package reduces Greece’s debt, but not by enough to give it a genuine chance of recovery (see article).

他们未能承担一系列的重建计划：当前援救的一揽子计划减少了希腊的债务，但是对于给予它真正复苏的机会还远远不够。

youdao

But Tilford does not believe Europe is ready,or willing,yet to undertake fundamental economic reforms he thinks are needed to right these imbalances.

VOA: standard.2010.02.26

The countries who now adhere to the treaty undertake not to pursue territorial claims in Antarctica and to protect the continent's flora and fauna.

BBC: Antarctic Bill part one

China should undertake not to send official vessels into Japanese waters, as it still occasionally does, and deal more forcefully with militaristic sabre-rattlers like the general who suggested using the Senkakus for bombing practice.

ECONOMIST: Japan and China

Most undertake not just to lower bills, but to dispense with whole tomes of the 3.4m-word code.

ECONOMIST: The presidential race