| 释义 |
Porteňo, R.
- portern. 门房；守门人；服务员；行李搬运工
- portern. 门房；守门人；服务员；行李搬运工
- portrayern. 肖像画家
- portrayaln. 画像,描述;描写,扮演;描摹,表现
- 读、写、算dú _ xiě _ suàn
the three R's
- 阴极射线管yīn jí shè xiàn guǎn
cathode-ray tube (CRT); cathode-ray lamp; C-R tube
- 絮凝反应xù níng fǎn yīng
flocculoreaction; F. R.
- 每分钟转数měi fèn zhōng zhuǎn shù
revolutions per minute (r/m)
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