haystack
(also hayrick), n
1 large pile of hay firmly packed for storing, with a pointed or ridged top (捆扎妥当便於贮存的)大乾草垛(顶端呈尖形或脊形).
2 (idm 习语) a needle in a haystack => needle.
🗣️ 情景例句
First, we have to decide where to live.
首先 ,我们得决定住在哪里。
In secondary school, children study history and geography.