snail

1. N-COUNT A snail is a small animal with a long, soft body, no legs, and a spiral-shaped shell. Snails move very slowly. 蝸牛

2. PHRASE If you say that someone does something at a snail's pace, you are emphasizing that they are doing it very slowly, usually when you think it would be better if they did it much more quickly. 慢吞吞地[強(qiáng)調(diào)]

The train was moving now at a snail's pace. 火車現(xiàn)在正緩慢行駛。