Therefore, cargo insurance is an activity aiming at moving the risk from the exporters and importers to the underwriters.老师好，这里的activity是物，为什么用aiming不用aimed?
He had studied the Greek language, and read the works of Greek historians; and he attended lectures on philosophy and rhetoric, and was obviously interested deeply in acquiring power as a public speaker. To write and speak well gave a public man great influence in those days. Many of the measures of...
Ministers have chosen to make "savings" predominantly off the back of low-income pupils in an education system that was already stacked against them. 这句话怎么翻译？其中有哪些搭配？
...and their business, have a passion for the product, and have what it takes to persevere?关系代词what引导的从句it takes看起来更像是定语从句what做takes的宾语，不定式作状语，请各位老师给我解惑，it这里做真主语，指代的又是什么？