用法:
1 six times as much or as many; six times as great 六倍（的）:
a sixfoldincrease 六倍的增加 *
increase sixfold 增加六倍.

用法:
2 having six parts 有六个部分的.

• already(all ready)
• already(still)
• already(yet)
• also(as well, too)
• also(by the way)
• also(either)
• alternate(rotate)
• alternately(alternatively)
• although(but)
• although(though)
• although(while)
• altogether(all together)
• always(often)
• amiable(amicable)
• amid （ st ）(among)
• among(between)
• among(in)
• amount(number)
• amount(quantity)
• ample(enough)
• ample(every)
• an amount of(a number of)
• an amount of(a quantity of)
• and all(and all that)
• and not(not… but)