I/you can count somebody/something on (the fingers of) one handspokenFEW/NOT MANY used to emphasize how small the number of something is 某人/某事屈指可数 The number of cougar attacks on humans can be counted on the fingers of one hand. 美洲狮袭击人的事屈指可数。
→ I/you can count somebody/something on (the fingers of) one hand at count1(1)