Also, Alibaba founder Jack Ma has pledged $14 million to help develop a vaccine.

此外，阿里巴巴创始人马云承诺捐赠1400万美元，用于研发冠状病毒疫苗。

The UK government has pledged to end smoking in England by 2030 in an effort to reduce preventable deaths.

英国政府已承诺在2030年前实现无烟目标，以减少可预防的死亡。

The group has pledged to continue campaigning.

这个组织发誓继续投入运动。

He pledged to unify the city's political factions.

他保证要统一全市的政治小集团。

The government pledged their support for the plan.

政府保证支持这项计划。

Japan has pledged $100 million in humanitarian aid.

日本已承诺提供一亿元人道主义援助。

They have already pledged billions of dollars in aid.

他们已经承诺了数十亿美元的援助。