组：by turns in turn 1. by turns 意为轮流、交替。如： We did the work by turns. 我们轮流做这项工作。 They laughed and cried by turns. 他们一时哭一时笑。 2. in turn 意为依次。如： We will cross the
Happiness is considered very important in life. Why is it difficult to define? What factors are important in achieving happiness? When asked what they are after in their life, people tend to say that happiness is the most important, if not
