Meaning of jìng sài:
jìng sài
竞赛
Verb
to compete; to race
Tāmen zhèngzài zhǔnbèi yī chǎng zhòngyào de tiánjìng jìngsài.
他们正在准备一场重要的田径竞赛。
They are preparing for an important track and field competition.
Noun
contest; competition; match; race
Tā zài shùxué jìngsài zhōng huòdé le yī děng jiǎng.
她在数学竞赛中获得了一等奖。
She won the first prize in the math contest.