lead /li?d/ n. 铅笔芯；铅；黑铅
买铅笔 buy a pencil
A：Are pencils currently on sale? I need to buy some pencils for office use.
铅笔现在打折吗？我需要买些铅笔办公用。
B：How many pencils do you want? We can give you a discount according to the amount.
您想要多少支？我们可以根据您买的数量给您打折。
currently /?k?r?ntli/ adv. 现在，当前
amount /??ma?nt/ n. 数量
◆ give/offer sb. a discount 给某人折扣
◆ according to 根据，依据，按照
握住铅笔 hold a pencil
A：You're holding the pencil in your left hand when writing. Are you left-handed?