寒冷的冬天，一碗热腾腾的蛋花汤让人倍感温暖。

On a cold winter day, a bowl of hot ___egg-drop soup warms you up instantly.

孩子们用吸管和胶带制作装置参加学校的鸡蛋保护挑战赛。

The kids used straws and tape to make devices for the school's ___egg-drop challenge.