Infructuous
a. 不结果的, 徒劳的
🗣️ 情景例句
Come and sit down for a minute, Michelle.
过来坐一会儿， Michelle。
Idleness is the root (or mother) of all evil (or sin or vice).
懒惰是万恶之源。
because this is easier to shape than other kinds.
因为燧石较之其他石头更容易成形。