“一只钟”的各种写法

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I.  Description
The clock is about three square inches and light ivory in color with a white face. The white face has black numbers with a black minute hand and a black hour hand. The blue second hand constantly turns clockwise, and a little gold alarm hand is nearly hidden under the other larger hands. The brand name General Electric is written in small black letters on the lower portion of the inner circle of numbers. The time is… .

II.  Classification
The clocks can be divided into two main categories: mechanic and electronic. Mechanic clocks use a coil spring as the source of motion. To keep a clock working, you have to squeeze the spring tight by winding the key on the back every twenty-four hours. An electronic clock works according to a pre-set program powered by set of dry batteries. It needs no winding, but the batteries have to be changed from time to time.

III.  Definition
A clock is a device used for measuring and indicating time, usually by means of pointers moving over a dial. These pointers are moved by a coiled spring would tight regularly. Clocks, unlike watches, are not meant to be worn or carried about, but placed on a table, hung on a wall or stood against a wall. In addition to its practical use, it serves as a household ornament.