pose:to create a threat, problem, etc. that has to be dealt with 造成（威胁、问题等）;引起;产生
to pose a threat/challenge/danger/risk
构成威胁／挑战／危险／风险
The task poses no special problems.
这项任务不会造成特别的问题.
immune
that cannot catch or be affected by a particular disease or illness 有免疫力
Adults are often immune to German measles.
成人往往对风疹有免疫力.
not affected by something 不受影响
You'll eventually become immune to criticism.
你终究会变得不在乎批评了.
protected from something and therefore able to avoid it 受保护;免除;豁免
No one should be immune from prosecution.
任何人都不应免于被起诉.
Not even the President's wife was immune from criticism by the press.
甚至总统夫人都未能免遭新闻界的批评.
