log词根的用法归纳第1篇
1、复数：logs
2、过去式：logged
3、过去分词：logged
4、现在分词：logging
5、第三人称单数：logs
log词根的用法归纳第2篇
1.log in〔on〕（v.+adv.）
开始工作（especially concerning a large calculating machine) to start work
In order to log in you have to type in a special password.为了进入，你必须打入特殊的通行密码。
2.log off
结束工作（especially concerning a large calculating machine) to finish work
It took two hours to complete the calculation, so we logged off at 4 o'clock.我们花了两个小时才完成计算，因而是在四点结束工作的。
3.log up（v.+adv.）
①把…记入航海或飞行日志mark up in a log-book
They logged up the ship's position regularly.他们定时把船的方位记入航海日志。
The ship has now logged up voyages equal to a distance ten times round the world.该船迄今已有相当于环球10周的航程记录。
②取得achieve
We have logged up a remarkable series of gains in technical innovation.我们已在技术革新方面取得一系列可观的成就。
Our team has logged up an unusual number of wins this season.这个赛季里我们队获胜的次数异常多。
4、 (as) easy as falling off a log1(informal)very easy（非正式）易如反掌
