subdrill

名词 n.

英文释义

名词 n.
  1. A training exercise forming part of a larger training exercise or system.
    — Learners can go through the series of subdrills and review old drills in a systematic manner. The various subdrills may be selected by the learner from a menu such as that shown in Fig. 4.11.

词形变化

subdrills plural

词源

From sub- + drill.
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