◎◎◎ achieve ⪢⪢
Achieve means to do something successfully especially after much effort.
http://qindex.info/i.php?x=22063

◎◎◎ arrive ⪢⪢
_____ means to come to a place, especially at the end of a trip.
http://qindex.info/i.php?x=21971

○○○ burgeoning ⪢⪢
The need for palm oil has led to the creation of large plantations, especially in Southeast Asia. The group Amnesty International says the burgeoning demand is causing labor rights abuses on many plantations.
http://qindex.info/i.php?x=7106

○○○ frequency ⪢⪢
The _____ of rainstorms is very high, especially during the spring.
http://qindex.info/i.php?x=16273

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