一种方法是提供两套拼写体系，改进简化后的和原有的，人们拼写时可任选；另一种则是将拼写系统彻底改进。
The first would be to simplify the way in which words are spelt and then allow people to choose whether to use the new or old system, while the second approach would involve a complete change.
我们可任选一方便的固定量溶液进行研究。
We are free to choose a convenient fixed quantity of solution to work with.
一般建议选手在开始预备姿势时将手放到所要求的位置，如此一来可告诉靶场主任选手已经准备就绪。
It is suggested that when the competitor takes up the ready position, placing the hands into the position required will indicate final readiness to the Range Officer.
如果在同一时刻有多个维修程序，可任选进入其中的一个维修程序。
If at the same time a number of maintenance procedures, which can be optional to enter a maintenance procedures.
该组合物还包含表面活性剂，以及任选的一种或多种其他可药用的赋形剂。
The composition further comprises a surfactant and optionally one or more other pharmaceutically acceptable excipients.
该组合物还包含表面活性剂，以及任选的一种或多种其他可药用的赋形剂。
The composition further comprises a surfactant and optionally one or more other pharmaceutically acceptable excipients.
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