形容詞 slow:

1. not moving quickly; taking a comparatively long time
   同義詞：slow
2. at a slow tempo
   同義詞：slow
3. slow to learn or understand; lacking intellectual acuity
   同義詞：dense, dim, dull, dumb, obtuse, slow
4. (used of timepieces) indicating a time earlier than the correct time
   同義詞：slow
5. so lacking in interest as to cause mental weariness
   同義詞：boring, deadening, dull, ho-hum, irksome, slow, tedious, tiresome, wearisome
6. (of business) not active or brisk
   同義詞：dull, slow, sluggish

副詞 slower:

1. more slowly

1. Tell the driver to go slower.
   告訴司機(jī)開慢些。
2. We soon outstripped the slower runners.
   我們很快就超過那些跑得慢的人。
3. Often life is much slower outside the big cities, as is true in other countries as well.
   大都市外面的生活步調(diào)往往是緩慢得多，這在其他國家也是真的那樣。
4. It's a bit slower.
   這慢了一點。
5. The captain decided to take Jeff off and try a slower bowler.
   隊長決定把杰夫換下來，換上一個慢一點的投球手。
6. Could you speak slower?
   你能說得慢一點嗎？