:Period Four Project
Language Focus
1．...and a needle like a small sword，used for letting liquid out of body parts which had swollen up.有一种像小剑的针，是用来让液体从脓肿部位流出。
[归纳拓展]
let...out of...让……从……中流出/出去
let out相当于及物动词，后面必须加宾语，out为副词，意为“让(人等)出去；放出(水、空气等)；放宽、放大衣服等；发出(叫喊声等)；泄露(秘密等)，不留神说出；放过某人免受某事之累(尤指不愉快之事)”。
