Walk forward without turning back, and pick only one stalk.

你一直往前走，不要回头，摘一棵麦穗。

youdao

Walk forward without turning back, and chop down only one tree.

一直向前走，不要回头，然后砍一棵树回来。

youdao

His teacher answered; "There is a vast wheat field in front. Walk forward without turning back and pick only one stalk."

老师告诉他，“前方有一大片麦田，你过去摘一株最大最好的麦穗回来，但你只能往前走，不能回头，并且只可以摘一次。”

youdao