英语翻译！~·

1.长成：grow into
A boy grows into a man.
个人觉得grow up 是长大的意思
2.在危境中：in danger
He is in danger since the snake is close to him_
3.独自：alone/by oneself
He came alone.
He finished all the works by himself.
4.采取以下措施：take following measures/take measures as follows