→ zebracoco: 這句已經不是are there和there are問題了,而是整句文 05/28 19:16
→ zebracoco: 法有問題。 05/28 19:16
→ raymond5566: 抱歉 我想講的是透過紅外線偵測是否有人在該樓層電 05/28 19:47
→ raymond5566: 梯才會自己決定是否停在該樓層 05/28 19:47
推 Jin63916: 是否:whether/if;detect if anyone is there 05/28 21:44
→ kangan987: Use infrared system to detect if there are people s 05/30 23:11
→ kangan987: tanding in front of the elevator. 05/30 23:11