今天介紹的俚語是pitch in，pitch in是什么意思呢？最常見得意思是一起幫忙，做出貢獻(to join in and help someone with something).

例句：
If you could pitch in a little we'd be finished quicker.
如果你能幫忙一下，我們很快就可以完成。

After the Christmas dinner, we all pitched in to clean up the house.
圣誕晚餐后,我們全都動手幫助清理房子。

If everyone pitches in, we'll soon get the job done.
如果大家一起拼命干，我們很快就會把這個工作干完。

讀者可以嘗試翻譯一下：

Would you please pitch in and help with the party? Come on! Pitch in!

pitch in還有其他的意思：

1.分擔共同擔負的費用；捐獻(某物)；(以某物)支援：
例句：
When they took up a collection for the annual dinner, he promised to pitch in.
當他們為一年一度的聚餐籌款時，他答應捐款。

2.投入；把…扔進去：
例句：
Please pitch your waste paper in here
請把廢紙扔在此地。

3.大吃特吃，開始大吃：
例句：
As soon as the food was put on the table, all the children pitched in without waiting to be invited.
食物一端上桌子，孩子們用不著請便大吃起來。