v.领先;占先一步;先发制人,阻止,妨碍
She forestalled my plan to meet her. 她抢在我前面,使我要去接她的计划落了空。
I have my objection all prepared,but Stephens forestall me. 我已做好准备要提出反对意见,不料斯蒂芬斯却抢先了一步。
We must act now to forestall disaster. 我们现在必须采取行动以防灾难。
We installed an alarm system to forestall break-in. 我们安装了一套警报系统来预防小偷的闯入。