at one’s best/處于狀態(tài)

at best/至多 ; better (good 的比較級(jí); well 的比較級(jí))

beat v. 打，敲;擊敗，勝過(guò);[音]打(拍子)，(心臟等)跳動(dòng)

beating against/on sth. /打在……上

the heart beats. /心臟跳動(dòng)

beat sb. /戰(zhàn)勝……a heartbeat /心跳聲;

beautiful adj. 美麗的;很好的;

beauty n. 美，美麗;美人，佳人;美的事物

the beauties of nature/大自然的美

beauty art/ 美容術(shù)，化妝術(shù)

beauty contest/選美會(huì)

because conj. 因?yàn)?

become(became, become, becoming) v. 變?yōu)椋�成�?

begin (began, begun, beginning) v. 開(kāi)始，首先

begin to do sth. /開(kāi)始……