Drills
n. 操练；斜纹布；钻头（drill的复数）
🗣️ 情景例句
A lot of people would like my help.
许多人要我帮助。
This is my fourth year of college, I'm a senior.
这是我上大学的第四年，我是四年级学生。
It's odd that they didn't reply our letter.
他们没有给我们回信，这真奇怪。