He is invincible at football.
论踢足球, 他是无敌的。
Bacteria is something invisible to the eye.
细菌是肉眼看不见的东西。
She was invisible in the dusk of the room.
她在昏暗的房间里别人看不到她。
I'm not involved.
那与我无关。
Apply the wound with some iodine.
在伤口上抹点碘酒。
It was ironic that the murderer was his wife.
有讽刺意义的是，凶手是他的妻子。
What you have just said is irrelevant to the subject.
你刚才说的话不切题。
It must be done, irrespective of cost.
不论花费多少, 这件事一定要做。
The fields need irrigating.
田地需要灌溉。
It is impossible to make plants grow in a desert without irrigation.
未经灌溉，植物在沙漠中不可能生长。
Several villages have been isolated by the heavy snowfall.
好几个村庄因大雪与外界隔绝。
Even an oversight in the design might issue in heavy losses.
设计中那怕是一点点疏忽也可能造成重大的损失。
The issue was not primarily a political one.
这问题根本不是政治问题。
I bought the novel the day after its issue.
我在这部小说发行的第二天就买了一本。
There was an interesting item in the newspaper today.
在今天的报纸上有一条有趣的新闻。