零加任一数仍等于该数，零乘任一数则等于零。
Zero plus any number gives that number again, and zero times any number gives zero.
有时人们朝他任扔去零碎食物，却很少听到感谢；有时，人们恶作剧似地扔去块鹅卵石，得到的回报是暴风雨般的石头和谩骂。
Sometimes they threw(him)bits of food, and got scant thanks; sometimes a mischievous pebble, and a shower of stones and abuses.
如果你不承认你使用现有的代码，您将收到零标志着这一任务。
If you do not acknowledge your use of existing code, you will receive zero marks for this assignment.
应用推荐