1.even if 即使，縱然

They conference even if duke is out of the country.
即便是麥道克不在美國，他們也會舉行會議t^!Mmj.0a8An。

And there are sensitivities around services that involve children--even if parents are involved.
此外某些涉及兒童的服務項目容易引起爭議——即使父母參與也無濟于事6prgM;ATf(|jr。

2.engage in 參加，從事

They engage in more high-risk activities than women.
他們比女人更多地從事高風險的活動NV[*5VPQ,(Q8.XIm4。

They tempt you to engage in non-restful activities and keep you awake.
它們誘惑你從事不能休息的活動讓你保持清醒Lv%esk*H9%!ABubr。

3.react to 對…作出反應

Iran didn't immediately react to huawei's announcement.
伊朗沒有立即對華為的聲明做出反應f4(^2XC0WfR.。

So how would americans react to such a disaster?
那么美國人對這樣的災難會如何反應呢？