評論
打印
1、prevent
防止；預防；阻止
These methods prevent pregnancy.
這些方法能防止懷孕。
Further treatment will prevent cancer from developing.
進一步的治療將阻止癌癥惡化。
阻止；制止；阻礙
He said this would prevent companies from creating new jobs.
他說這將使公司無法創(chuàng)造新的工作機會。
Its nationals may be prevented from leaving the country.
其國民可能會被禁止出境。
2、occur
發(fā)生
If headaches only occur at night, lack of fresh air and oxygen is often the cause.
如果只是在晚上頭疼，那常常是由于缺乏新鮮空氣和氧氣的緣故。
The crash occurred when the crew shut down the wrong engine.
機務人員關錯了引擎，隨即飛機墜毀。
存在；出現(xiàn)；有
The cattle disease occurs more or less anywhere in Africa where the fly occurs.
在非洲凡是有這種蠅蟲的地方，幾乎都會出現(xiàn)這一牛病。
These snails do not occur on low-lying coral islands or atolls.
在地勢低平的珊瑚島或環(huán)礁上沒有這種螺。
（想法或主意）被想到，被想起，浮現(xiàn)于腦海中
It did not occur to me to check my insurance policy.
我沒有想到要核實我的保險單條款。
It occurred to me that I could have the book sent to me.
我想到可以讓人把書寄給我。
