sucking
v. 吸；吮吸；吞没；（使）卷入；（非正式）令人不快（suck 的现在分词）
adj. （小孩、动物）未断奶的；（动物）羽翼未丰满的
例句
The earth convulsed uncontrollably, a rift opened suddenly and, with a horrid sucking sound, swallowed the entire pool.
大地失控地剧烈震动，一条裂缝突然出现，随着一声可怕的吞吸声，吞噬了整个池塘。
《柯林斯英汉双解大词典》
As stimuli were presented, changes in the infant's sucking behavior were recorded.
当刺激出现时，婴儿吮吸行为的变化被记录下来。
Instead of flushing, they work like a vacuum cleaner sucking away the astronaut's waste.
不是冲洗，而是像真空吸尘器一样吸走宇航员的排泄物。
