n.

1. 痕跡；遺跡[C][U]
   The archaeologists found some traces of an ancient civilization in that area.

   考古學家們在那個地區發現了一些古代文明的遺跡。

2. 絲毫，微量[C]
   There was barely a trace of salt in the soup.

   湯裡簡直一點鹽也沒有放。

   He always spoke with a trace of sarcasm.

   他說話總帶著一絲諷刺。

3. （記錄儀器上存留的）圖形，記錄[C]

vt.

1. 跟蹤；追蹤[（+to）]
   The police traced the criminal.

   警察追蹤罪犯。

2. 查出，探出
   The post office tried to trace the lost letter.

   郵局設法查出那封丟失的信。

3. 追溯；查考[（+back/to）]
   The book traces the development of philosophy.

   該書追溯了哲學的發展過程。

4. 描繪；勾出……的輪廓[（+out）]
5. （費力，細心地）寫（字）
6. 描摹，摹寫；複寫
   The kids are learning to trace the letter.

   孩子們學描字母。

vi.

1. 沿著路走
2. 上溯[（+to）]
   His fear of snakes traces back to an experience in his childhood.

   他對蛇的懼怕溯自他孩童時的一次經歷。

n.

1. 挽繩，韁繩
   kick over the traces

   擺脫控制；不順從

v.

1. find by investigation.
   ▸find or describe the origin or development of.
2. follow the course or position of with one's eye, mind, or finger.
3. copy (a drawing, map, or design) by drawing over its lines on a superimposed piece of transparent paper.
   ▸draw (a pattern or line).
4. give an outline of; describe.

n.

1. a mark, object, or other indication of the existence or passing of something.
   ▸a physical change in the brain associated with a memory.
2. a very small quantity.
   ▸a barely discernible indication:

   a trace of a smile.
3. a line or pattern corresponding to something which is being recorded or measured.
   ▸the projection or intersection of a curve on or with a plane.
4. a procedure to trace something, such as the source of a telephone call.
5. Mathematics  the sum of the elements in the principal diagonal of a square matrix.
6. N. Amer. & W. Indian a path or track.

n.