Nest-building
筑巢
?? 詞語組成解析
nest
[nest]
n. （鳥）窩;溫床;（套疊在一起的）一套物件;藏匿處;
vt. 筑巢;嵌套;
vi. 筑巢;
building
['b?ld??]
n. 建筑物;樓房;房屋;建筑（藝術(shù)或行業(yè)）;
v. build的現(xiàn)在分詞;
build建造+ing某種行為的產(chǎn)物→建筑物
??? 情景例句
I got lost for two days and I couldn't find anyone who could understand me.
我已經(jīng)迷路兩天了，找不到一個人可以聽懂我的話。
The milk in the refrigerator has begun to turn sour.
冰箱里的牛奶開始腐敗了。
He is now satisfied merely to try to stand up, but as soon as he does so a porpoise knocks him flat.
此時的海龜，只要能站起來就滿足了，但它剛站起來，就被一只海豚擊倒。