It is not hard to operate automatic machines.
操作自动机器并不难。
David: Wow, it's fantastic. I guess it must be very hard to operate machining centers.
大卫：哇，太神奇了。我猜加工中心肯定很难操作。
The common practice to change from the pushing operation to towing, or vice versa, is both time - consuming and power - wasting, and it is hard to operate as well.
一般拖轮由顶推作业改为艉拖作业或反之，不仅费时费工，而且操作不便。
The method used in the past for evaluating ferric ion stabilizer for acidization is not only complicated but also hard to operate, thus being unfavorable for objective evaluation.
以往的酸化铁离子稳定剂评价方法既冗长复杂又不易操作，不利于铁离子稳定剂的客观评价。
But the main factor is the growing shortage of casual staff - a big issue after four years of robust economic growth - that makes it hard to operate profitably during late-night hours.
但主要的因素是兼职员工日益短缺(这是经济稳健增长4年后的一大问题)，这让企业难以在深夜时段盈利。
Preemption is an important system in Chinese law. However, the legislation related to it is so simple that it is hard to operate. Some coherent theoretical research also can't match the fact.
先买权，即优先购买权，是我国现行法中一项重要的制度，但立法过于简略，缺乏可操作性，一些理论研究也有不适应实践需要之处。
Preemption is an important system in Chinese law. However, the legislation related to it is so simple that it is hard to operate. Some coherent theoretical research also can't match the fact.
先买权，即优先购买权，是我国现行法中一项重要的制度，但立法过于简略，缺乏可操作性，一些理论研究也有不适应实践需要之处。
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