1.魔术手法（名词）；2.欺诈术（名词）

1. (noun) Something popular and considered highly sophisticated as in tricks done by a magician.

2. (noun) Clever deceit.

例句

EXAMPLE 2: The magician wonderful skills of legerdemain enabled him to pull beautiful doves from a simple vase of flowers.

这位魔术师表演手法极为熟练，可以从一只普通花瓶里拿出美丽的鸽子。

EXAMPLE 1: The dishonest accountant used a lot of undetected legerdemain to conceal his mistakes.

这位不诚实的会计利用很多未被察觉到的欺诈方法来掩盖他的过错。

当期热卖

Anything that is temporarily popular or in fashion. (NOTE a reference to new ice cream flavors that American vendors introduce monthly to boost sales.)

EXAMPLE: I'm not buying the popular new electronic device, because it is merely the flavor of the month, and in a short time I expect it will be displaced by something newer and better.

我不买这款正流行的新电子设备，因为它仅仅在时下流行，我预期它会在短期内被更新、更好的东西取代。