While we were working on the weapons, one soldier complained about the unusual notched shape of the M-16's bolt and chamber, which makes it difficult to clean.

我们一块擦枪，一名战士抱怨由于M - 16的枪栓枪膛的特殊凹形结构，擦起来十分困难。

youdao

But I \ 'm thinking: you \' re finishing 16 years of education, and you \ 've heard all the conventional good advice you can stand.

但是我在想：你们已经经历了16年的教育，你们已经受够了传统说教的喋喋不休。

youdao

Emerging from the covered bridge, it felt as if a giant stereo turntable had been stepped down from 78 r. p. m. to 16 r. p. m.

一走出廊桥，就感觉像是一个巨大的唱片机从每分钟78转的播放速度直接降到了16转。

youdao

The original M-16 patent ran out years ago, and now the AR-15 is manufactured by several gunmakers.

CNN: Newtown shooter's guns: What we know

That is almost as far as America's main assault rifle, the M-16, can shoot conventional bullets with accuracy.

ECONOMIST: Military technology

The Iraqi M-16 fire, or maybe heavier machine gunfire, is now starting.

CNN: Savidge