1.frequently

adv.

[definition]:at frequent or short intervals--the list is updated frequently.

[synonyms]:constantly,continually,hourly,oftentimes,over anf over,repeatedly

[antonyms]:infrequently,little,rarely,seldom

2.confront

v.

confronted;confronting;confronts

[definition]:

1)to face espacially in challenge--confront an enemy;the mayor was confronted by a group of protesters抗議者.

2)to cause to meet:bring face to face--confront a reader with statistics;confront her with the evidence.

3)to meet face-to-face--confronted the possibility of failure.

[synonyms]:brave,brazen明目張膽,dare,outbrave用勇氣壓倒,outface凜然面對(duì)

[antonyms]:shirk推卸,sidestep避開(kāi)、回避問(wèn)題

3.contest

v.

[definition]:

1)strive努力、爭(zhēng)取--contest for power.

2)就...提出異議to make the subject of dispute糾紛,contention沖突,or litigation訴訟--the deceased's死者 relatives are contesting his will.

[synonyms]:challenge,dispute糾紛,question,impeach彈劾

[antonyms]:accept,believe,embrace欣然接受,swallow吞下、相信

n.

[definition]:

1)a struggle for superiority優(yōu)勢(shì) or victory--a football contest between rival teams.

2)a competition in which each contestant performs without direct contact with or interference干擾 from competitiors競(jìng)爭(zhēng)者--he won the contest for best photograph.

[synonyms]:ball game,battle,combat戰(zhàn)斗,competition

4.optimistic

adj.

[definition]:of,relating to,or characterized by optimism--an optmistic outlook;an optimistic economic forecast經(jīng)濟(jì)預(yù)測(cè);i'm feeling optimistic about our chances.

[synonyms]:bright,encouraging,upbeat樂(lè)觀

[antonyms]:depressing,hopeless,downbeat悲觀

5.tablet

n.

--an aspirin tablet;tablet computer

[synonyms]:cap,capsule膠囊,lozenge菱形含片藥物,pill

回顧：1.frequently 2.confront 3.contest 4.optimistic 5.tablet