序论

xùlùn 同“绪论”。

• 钻探
• 钻探机
• 钻探船
• 钻故纸
• 钻故纸堆
• 钻木取火
• 钻机
• 钻杆
• 钻洞觅缝
• 钻灰
• 钻牛角
• 钻牛角尖
• 钻狗洞
• 钻珠
• 钻石
• 钻石婚
• 钻石戒
• 钻研
• 钻空子
• 钻缝儿
• 钻营
• 钻谋
• 钻钱眼儿
• 钻门出户
• 钻门子
• as it/things turned out
• as it were
• ask
• ask after
• askance
• ask around
• ask back
• ask, cry, etc. for the moon
• askew
• ask for
• ask for it
• ask out
• aslant
• (as) large as life
• asleep
• AS (level)
• a slice/share of the cake
• (as) like as not
• as likely as not
• a slip of a boy, girl, etc.
• a slip of the pen/tongue
• as long as your arm
• as luck would have it
• as many as…
• as much