Idiom(s): jump at the chance AND jump at the opportunity; leap at the opportunity
to take advantage of a chance to do something. • John jumped at the chance to go to England. • I don't know why I didn't jump at the opportunity myself. • I should have leaped at the chance.
1．move suddenly 突然向前 The horse leaped forward，and I got out of the way only just in time．马突然向前冲，我刚好及时地闪开了。 2．develop very fast 迅速发展Scientific discoveries have leapt forward in recent years．科学发现近来日益增多。
leap in the dark
step taken in ignorance of the consequence 不管结果如何贸然行事；鲁莽之举；冒险 The experiment was a leap in the dark．此项实验实在是冒险。 I'm about to make my last voyage，a great leap in the dark．我就要作最后的航行，一次大冒险。 It will be a leap in the dark to make an important decision without investigation．不进行任何调查就作出重要的决定将是冒险的行动。
suddenly enter 突然闯进 A great idea just leaped into my mind．我突然想到一个绝妙的主意。
leap of faith
leap of faith A belief or trust in something intangible or incapable of being proved. For example, It required a leap of faith to pursue this unusual step of transplanting an animals' heart into a human patient.
be noticeable 引人注目 His name leaped out at me from the newspaper．他的名字出现在报上，引起了我的注意。
leap to conclusions
Idiom(s): jump to conclusions AND leap to conclusions
to judge or decide something without having all the facts; to reach unwarranted conclusions. • Now don't jump to conclusions. Wait until you hear what I have to say. • Please find out all the facts so you won't leap to conclusions.
n. Every fourth year during which the month of February contains 29 rather than 28 days. During a leap year one must wait a day longer for one's February pay check.
Look before you leap
This idiom means that you should think carefully about the possible results or consequences before doing something.
Look before you leap.
Consider possible consequences before taking action.
a cliff where lovers jump into a canyon together Let's drive up to Lovers' Leap and look at the stars.
quantum leap A dramatic advance, especially in knowledge or method, as in Establishing a central bank represents a quantum leap in this small country's development. This term originated as quantum jump in the mid-1900s in physics, where it denotes a sudden change from one energy state to another within an atom. Within a decade it was transferred to other advances, not necessarily sudden but very important ones.