infrequence infrequency 很少发生
rarity , seldomness
The doctors were overwhelmed by the infrequence of the illness, however they calmed down at once and they began to examine my husband.
病情的罕见,把医生们都吓倒了,但是他们很快冷静下来,给病人做全身检查。
youdao
应用推荐
模块上移
模块下移
不移动