Eg.: in seeking independence
on + 动名词搭配，表示“一……就……”, 必须注意主语的一致性。
Eg.: On seeing the plane coming towards me, I ……
In crossing the hall, I ...
On entering the hall, I...
be free from 不受……的影响
He’s leading a life free from care and anxieties.
The old lady is never free from paining.这位老太太始终病痛缠身。
free from error
free from anxieties.
make it possible for sb. to do sth.
keep oneself alive 为了生存
Eg.: How many of us can honestly say that we would like to learn Englsh well?
Small boats loaded with wares sped to the great liner as she was entering the harbour. Before she had anchored, the men from
the boats had climbed on board and the decks were soon covered with colourful rugs from Persia, silks from India, copper coffee
pots, and beautiful handmade silverware. It was difficult not to be tempted. Many of the tourists on board had begun bargaining
with the tradesmen, but I decided not to buy anything until I had disembarked.
I had no sooner got off the ship than I was assailed by a man who wanted to sell me a diamond ring. I had no intention of buying
one, but I could not conceal the fact that I was impressed by the size of the diamonds. Some of them were as big as marbles. The
man went to great lengths to prove that the diamonds were real. As we were walking past a shop, he held a diamond firmly
against the window and made a deep impression in the glass. It took me over half an hour to get rid of him.