That L2 learners are instructed to notice forms feature will facilitate the acquisition of FMCs.
如能让学习者兼顾形式特征，会有利于二语习得。
When the current flight management computer system(FMCS)optimizes flight, it assumes the flight line is an invariable parameter.
目前的机载飞行管理计算机系统（FMCS）在进行飞行优化时，视航路为固定常量。
When the current flight management computer system(FMCS)optimizes flight, it assumes the flight line is an invariable parameter.
目前的机载飞行管理计算机系统（FMCS）在进行飞行优化时，视航路为固定常量。
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