part used

基本解释

Cam is a common part used in mechanical field widely.
凸轮是一种应用很广的通用零件。
A gear, whose quality determines the property of its related products, is a kind of typical drive part used widely.
齿轮是广泛使用的传动零件，其质量的高低直接影响着相关产品的性能水平。
Unlike its independent neighbour, Papua New Guinea, which occupies the eastern half of the vast island, the western part used to be a Dutch colony.
与占据东部大半岛屿的独立邻邦巴布亚新几内亚不同，岛屿西部曾经是荷兰的殖民地。

Here is part of it. "I used to try on Mommy's jeans, just to see how they'd fit on me.
The Deuteronomist makes it clear that God's great love should awaken a reciprocal love on Israel's part, love of God. Love of God here really means loyalty. The word that is used is a word that stresses loyalty.
申命记清楚的要求上帝的爱应当唤起,以色列人对他的回应上帝的爱在这里事实上,意味着忠诚爱这个词被用在这里强调忠诚。
耶鲁公开课 - 旧约导论课程节选
I used to go to concerts. There's a big field in the southern part of the park.
我过去常常去听演唱会。在公园的南边有个大场地。
在中央公园溜达 - SpeakingMax英语口语达人

Part A — the good part — is used for cost basis that matches your 1099-B.
FORBES: Beware The Long (Global) Arm Of The IRS