Try to forestall their questions.是什么意思？

Try to forestall their questions.

尽量不让他们问问题(作到先发制人).

try

vt.& vi. 试图，努力，实验，审判，考

例句
He stopped to try to adjust his vision to the faint starlight...
他停下脚步试着让眼睛适应微弱的星光。

to

prep. 向，朝着，到，关于，属于；adv. 朝一个方向的，到某种状态，关闭；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

forestall

vt. 先发制人，预先阻止，垄断，屯积，领先；

例句
Large numbers of police were in the square to forestall any demonstrations.
广场上驻守着大批警察以防止任何示威活动。

their

pron. 他（她，它）们的，在提及性别不详的人时，用以代替 him 或 her；

例句
Their permissiveness toward their children reflects the wild abandon of their own lives.
他们对孩子的放任折射出他们自身生活的放浪形骸。

questions

n. 询问，疑问，问题，问题( question的名词复数 )，疑问，怀疑，议题；v. 问（某人）问题( question的第三人称单数 )，对（某事物）表示[感到]怀疑；

例句
I had asked everyone to submit questions in advance of the meeting.
我已请每个人在会议之前提交问题。