easy to chang
易于更改
以上为机器翻译结果，长、整句建议使用 人工翻译 。
I don't think it is ever easy to find out what to do, said Ms Chang.
这让人无所适从，不知道自己该做什么，张女士说。
youdao
This way made it facility to modulate and chang rolling type. On the other hand, it was easy to be made. Efficiency was improved and the cost was reduced.
这种卷封方式换型调整方便，制作加工简单，既提高了生产效率，又节省了生产成本。
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