单词 precautional 释义 precautional, a. rare.[f. as next + -al1.]Of the nature of precaution; precautionary.1648W. Mountague Devout Ess. i. vi. 3. 61 Wherefore this first filiall fear, is but virtuous and precautionall.1887Scott. Leader 9 Dec. 5 The prec...