It may also be said that rational, industrious,useful.
也可以這樣說，理智的、勤勞的、有用的。
新概念英語第四冊 Lesson 46 Hobbies

?? 句中詞匯解析

從本句中提取的重要詞匯

rational ['r??n?l] 詞頻4 詞根: ratio
adj. 神智清楚的;理性的;理智的;合理的; n. 合理的事物;[數]有理數;懂道理的人，人類;〈英〉合理的服裝;
?? ration定量，計算+al...的→通過計算的→合理的
"It was a rational plan and bound to succeed."
這是一個合理的計劃,肯定會成功.
近義：intelligent, logical, moderate, practical, reasonable, sensible 反義：illogical, inane, meaningless, nonsensical, absurd, preposterous
industrious [?n'd?str??s] 詞頻3 詞根: industrial
adj. 勤勞的，勤奮的;勤懇的，刻苦的;昧旦晨興;手勤;
?? industr勤勉 + ious 有...性質的 → adj.勤勞的,勤奮的
"If the tiller is industrious, the farmland is productive."
人勤地不懶.
近義：indefatigable, laborious, assiduous, persevering, persistent, relentless 反義：idle, indolent, loafing, negligent, shiftless, slack
useful ['jusfl] 詞頻1 詞根: use
adj. 有用的，有益的，有幫助的;令人滿意的;
?? use用+ful可…的” →有用的
"The memory expansion cards are useful adjuncts to the computer."
內存擴充卡是計算機很有用的附件。
近義：helpful, assistive, available, profitable, purposive, serviceable 反義：idle, inane, ineffective, insignificant, lousy, needless
said [sed] 詞頻1
adj. [律]上述的;少說為妙;（做）某事有/沒有很多優點（或好處）：某事物有/沒有多少可說的;說到底; v. 說，講( say的過去式和過去分詞 );表明;念;說明;
"Afterwards she was sorry for what she'd said."
后來她后悔說了那些話。
近義：indicated, spoken, stated, this, aforementioned, aforesaid

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