n. 1.原木，圆木，干材。 2.测程仪，计程仪。 3.航海日志，(飞行员用的)航海日志；旅行日记。 4.〔英国〕裁缝店日工的工作时间表。 5.【机械工程】记录表。 短语和例子 clear log干材。 heave [throw] the log用测程仪测船速。 sail by the log靠测程仪测船位航行。 a rough log航海日志草稿。 a smooth log誊清的航海日志。 a performance log(机器等的)运转情况记录(簿)。 a well log钻井记录。 as easy as falling [rolling] off a log 〔美国〕极容易。 in the log 未经斧削过的。 keep the log rolling 〔美国〕使工作高速度地进行下去。 Roll my log and I'll roll yours 〔谚语〕互相帮忙；互相吹嘘。 sleep like a log睡得很死。 split the log 〔美国〕分析，解释。 vt. (-gg-) 1.(把树)砍倒。 2.锯成圆材；拖(木头)。 3.把…记入航海[飞行]日志；把…输入电子计算机 (in). 4.航行；飞行；以…的时速飞行[航行]。 5.给(船体、机翼等)的线形图[轮廓线]放样。 vi. 采伐树木。 log in[off]【计算机】开始[停止]使用电脑工作，进入[退出]电脑工作系统。 n. ＝logarithm. vt. (-gg-) 向…提供补给品。 n. 补给品的发放，补给品发放的日子。 LOG, log ＝ logarithum.
measuring instrument that consists of a float that trails from a ship by a knotted line in order to measure the ship''s speed through the water
a written record of events on a voyage (of a ship or plane)
a written record of messages sent or received; "they kept a log of all transmission by the radio station"; "an email log"
the exponent required to produce a given number 同义词：logarithm,
a segment of the trunk of a tree when stripped of branches
enter into a log, as on ships and planes
cut lumber, as in woods and forests 同义词：lumber,
例句与用法
1.
No one makes singing stocks from a big log . 没有人用大圆木做击棒啊。
2.
He dragged out the log and laid it down . 他把那根木头拖出来放下。
3.
All the trees have been sawn up into logs . 所有的树已被锯成原木。
4.
They rafted the logs down the river . 他们将木头绑成木排顺河运送。
5.
The current swept the logs down the river . 水流冲着原木沿河而下。
6.
We watched the logs floating towards the mill .. 我们看着木头朝磨坊漂去。
7.
A log was swinging toward me . 一根大木头正晃来晃去照着我来了。
8.
The floors were made of smaller logs . 地板用的是较细的木料。
9.
Tell juan to get the fix and log it right away . 让胡安测方位，立刻记下来。
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