Based on the literal meaning of fall from grace (to lose the approval and protection of God), which happened to Adam and Eve in the Bible. Today it is also used more figuratively

出自《圣经·约伯记》19章20节，犹太人约伯是上帝的忠实仆人，魔鬼却攻击他，夺去他的儿女、财产和健康。在极度苦难中，约伯说道："My bone cleaveth to my skin and to my flesh,  and I am escaped with the skin of my teeth. 我的皮肉紧贴骨头，我只剩牙皮逃脱了。”牙齿怎么会有皮肤呢？ the skin of teeth就是牙齿表面的牙釉质。约伯用了一个形象的比喻：他的逃生空间就像牙釉质那样薄。从此，by the skin of one's teeth被用来表示死里逃生，涉险逃生；或以微弱的优势做成了某事，险胜。【Language Cafe 由国际台首席英文主播、金话筒奖得主、资深英语教师曼玲与外籍主持人精心挑选地道英文表达，以轻松愉快的聊天形式让听众过耳不失，学以致用。Carefully picked by Manling, A prime broadcaster for CRI's English service, also a seasoned English teacher, and her native English co-host, these authentic words and expressions are presented to listeners with empowered vocal images. Walk through our show,and they will be yours!  】

To deal with something slowly because you do not really want to do it.

Definition: To be very obviously different.  碍眼 显得不自然 显眼 别扭Etymology: When a hand injury is sustained, the natural instinct is to protect the affected finger, and as a result, a sore thumb is often held at a stiff, odd angle that may be obvious to even the casual observer.

Definition: Definition of "poster child" has since been expanded to a person of any age whose attributes or behavior are emblematic of a known cause, movement, circumstance or ideal. 典型，代表人物Etymology: Referred to a child afflicted by some disease or deformity whose picture is used on posters or other media as part of a campaign to raise money or enlist volunteers for a cause or organization.

To think creatively.

Definition: When you have so much to do, you have trouble doing it all.Etymology: It is based on the literal meaning of snowed under (covered by so much snow that people cannot get out or move around).

Definition: Very angry.Etymology: This expression alludes to the heat of anger. It is derived from how men who get angry would feel hot around their neck. They would then remove their tie and loosen their collar to be better prepared to fight.

To succeed in an act of deception. 糊弄 欺骗 捣鬼

Doing something risky, or in a situation that could quickly become dangerous. 如履薄冰 感到危险和紧张