1.競爭    n.

Nowadays, competition among youths to enter the best colleges in America is intense.

現今，年輕人想進入美國一流大學的競爭是很激烈的。

2.比賽 n.

They joined a chess competition and won the third place.

他們參加象棋比賽得到第三名。

3.比賽對手 n.

She is no competition for Michael in math and science.

她的數學和自然科學不是麥可的對手。