名人教英文：和身体相关的用语（3）
和身体有关的英文惯用语（idioms），俯拾皆是。之前谈过有关头、肩、手、足等部位的例子，这次我会介绍和腹背相关的惯用语。
break one's back意即拚命工作，如：i am breaking my back to finish the task on time. back-breaking形容极劳苦的差事，引伸形容庞大的负担或压力：the company is struggling with back-breaking debt.
have one's back to the wall即被迫到墙角，别无选择。譬如说，早前财政司长宣读预算案后，饱受各界抨击，不得不答应修改：the politicians pressed so hard for budget concessions that the financial secretary had his back to the wall.
on someone's back意谓不停对人唠唠叨叨。 "get off my back!" 是一句气话，即「别再跟我唠叨了！」
stab someone in the back字面义是在别人背后刺一刀，实质指放暗箭、背叛别人。his friend stabbed him in the back by speaking against his plan at the meeting.