a crash course

意味

a short period of lessons that teaches a lot very quickly

短期間で多くを教える講習.

例文

1. 1Before moving to Madrid, Tom took a crash course in Spanish.
2. 2The new lifeguards get a crash course in first aid before the pool opens for the summer.
3. 3I had two weeks before the interview, so my brother gave me a crash course in coding.
4. 4Is there a crash course that could teach me basic Italian before our trip next month?
5. 5Losing my job was a crash course in budgeting; within a month I learnt to live on half as much.

文法

可算の名詞句（a crash course、複数形は crash courses）。学ぶ内容は通常 in の後に置く。