Differences in usage between cost, spend, and take. All three can mean "expense", but there are big differences in usage and collocation. The current breakdown is as follows: 1. Judging from the subjects involved, the subject of cost is usually a thing or thing (including the formal subject it), not. The trigonometric formulas of Sec, csc and cot are secx=1/ (cosx), cscx=1/ (sinx), cotx=1/ (tanx)= (cosx)/ (sinx). Trigonometric function is one of the basic elementary functions, which takes angle as the independent variable. The angle corresponds to the coordinates of the intersection of the terminal side of any angle and the unit circle or. The difference between at a cost and at a cost of When understanding "at a cost" and "at a cost of", the key is to identify the subtle differences between the two expressions. In fact, although in English both mean to do something at some cost, the specific meaning and usage.
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2. At all cost means "at any cost, no matter what", and its usage is more common than at any cost; cost is originally an intransitive verb, but for convenience, the special combination of transitive verb plus indirect object plus adverbial object does not appear. The main difference between FOB, CNF and CIF lies in the different parties bearing costs, responsibilities and risks. FOB, the full name is free on board, that is, delivery on board, which is customarily called FOB price. Under the fob term, the buyer is responsible for sending a ship to pick up the goods.
