long call

基本解释

A combination of a long futures contract and a long put, called a synthetic long call.
由买入一个期货合同和买入一个看跌期权的组合，就叫做组合买入看涨。
If you're planning on using up the entire calling card on one very long call, this deal may be for you.
如果您打算在一次时间超长的长途电话中用完整张电话卡，这种电话卡也许会适合您。
How long call we keep the book?
我们能借这本书多久?。

Later,I got a telephone call from a friend whom I had not seen in a long time.
So priests, ministers or pastors -- we still call them pastors -had long been referred to as shepherds.
因此牧师，神官或教会牧师-我们仍然这样叫他们,很长一段时间都以牧羊人来代指。
耶鲁公开课 - 弥尔顿课程节选
Pax Romana This led to what we famously call the Pax Romana, "the Roman Peace," because you had the end of long, hundreds of years of civil wars and other wars, at least within Rome itself.
这导致了著名的，即“罗马和平“，因为长达几百年的，内战及大小战争终于结束了，至少在罗马本土结束了。
耶鲁公开课 - 新约课程节选

In other words, it would appear that options traders are hedging long call positions on stocks by purchasing puts on indexes.
FORBES: U.S. Stock Futures Creep Higher; Greece and Research In Motion in Focus