前面: in front; at the head; ahead不: a block of wood加: add; plus介词: preposition介词: [语言学] preposition不加: without the or奥米加介子: omegameson前面: 1.(位置靠前) in front; at the head; ahead 前面的房间 a front room; 走在队列前面 march at the head of the column; 请往前面走。 please go ahead.2.(次序靠前) above; preceding; forepart 前面的一章 the preceding chapter; 前面提到的规则 the above-mentioned rule（介词）指导: guide to动介词: coverb介词“离”: the preposition是介词: c like用介词: in twenty minutes' time; on/upon与介词: thanks（总称）不加: personnel不加倍: undouble不加冰: no ice please; straight up/up; straightup/up不加厚: non upsetting; nu不加油: non-refuelling不加载: nl no-load前不加: mr smith疫不加: epoka标记介词: flagging preposition标志介词: flagging preposition不再用介词: last next this that
