by twos and threes
常见例句
- The came to school by twos and threes.
他们三两成群地来到了学校。 - The students arrived here by twos and threes.
学生们三三两两地到这儿了。
chunhua1989.com - After we worked on adding and subtracting my girls added more numbers to the line and jumped by twos and threes, working on skip counting.
我们学习了加减法后，孩子们又在数字列上加进许多新的数字，并隔2，3个数字跳来学习跳跃计数。 返回 by twos and threes