This example is from Wikipedia and could be reused under a CC BY-SA license. A time period agreement features a constructed-in expiration 獎金，津貼；加價；附加費 We are willing to spend a premium for the most beneficial spot. 為了得到最好的地段，我們願意多付些錢。 Examples are hypothetical, and we encourage you to seek individualized assistance from experienced industry https://samamoo.com/category/business/investing/option-trading