.....句子唔明.....

應該係到盡咁解!

錯. 係把「針筒的針插入」而已, 後面那句 pressed down 先係按針筒注射. Home 在此的意思是「目的地」, 即係針要拮落去的地方 (即係血管啦, 唔通肌肉咩)

http://www.icons.org.uk/theicons/collection/sherlock-holmes/features/drug-use-in-the-19th-century


Drug Use in the 19th Century

“Sherlock Holmes took his bottle from the corner of the mantelpiece, and his hypodermic syringe from its neat morocco case. With his long, white, nervous fingers he adjusted the delicate needle and rolled back his left shirtcuff. For some little time his eyes rested thoughtfully upon the sinewy forearm and wrist, all dotted and scarred with innumerable puncture-marks. Finally, he thrust the sharp point home, pressed down the tiny piston, and sank back into the velvet-lined armchair with a long sigh of satisfaction.” ("The Sign Of Four", 1890)


你把這句 GOOGLE， 便可找到很多和 SHERLOCK HOLMES 吸毒的網頁。那句 Finally, he thrust the sharp point home, pressed down the tiny piston. 是指 sherlock holmes 拿起針筒，把針吉落隻手度，並把針筒活塞壓下，注射毒品。那段之前已描述他捲起左手的衫袖，成手針孔。

thrust the sharp point home ＝ thrust/drive/jab/push／slam the needle home

你查 " the needle home ", 可見大把有關打針的。

The nurse jabbed the needle home and Richard discovered just how strong a five-month-old infant could be. ...
tgs.gargoyles-fans.org/garg/season2/whentheboughbreaks2.html - 118k -

I quickly pull off into a gas station suck up the dope and slam the needle home. ... You don’t know the meaning of relief until you have been dopeless for 80-90 hours and you get some heroin into your bloodstream. ...
www.junkylife.com/seedless/index.php/heroin%20benzos%20buprenorphine%20addiction%20blog/withdrawls/ - 66k -

摘引； 最後，他猛地插入敏銳的點家，壓極小的活塞
猛地插入敏銳的點家

終於Finally, 他he將針頭sharp point刺thrus下去home,並且壓下pressed down 了唧筒tiny piston