- individual exercise
- 操练: drill
- 一个操练你的英语的好地方: a good place to piactice your english--
- 操练: drill; practice 士兵们在兵营练兵场操练。 the soldiers were at drill in the barrack-yard.; 操练椅 plint
- 单个: particularity; single tab stop; singularity; solitude
- 一个操作过程: cycle
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