Marquench
等溫[分級]淬火, 馬氏體淬火, 淬火時效
??? 情景例句
You always know the right thing to say.
你說話得體。
To build with blocks
搭積木
New Zealand is an impotant agricultural country with a small population. In size it is bigger than Guangdong Province, yet has a much smaller population.
新西蘭是一個人口很少的重要的農業(yè)國。新西蘭的面積比廣東省大，但人口卻少得多。