Stem lettuce
un. 莴苣笋\\n
🧩 词语组成解析
stem
[stɛm]
n. （花草的）茎;词干;（高脚酒杯的）脚;烟斗柄;
vt. 遏制[阻止]（液体的流动等）;阻止;封堵;遏止;
lettuce
['letis]
n. 莴苣，生菜;<俚>纸币;
🗣️ 情景例句
The train will be stopping in five minutes.
火车将在五分钟后靠站。
Knowledge without practice makes but half an artist.
只有知识而无实践，只能造就半瓢水的艺术家。
This is because they had no natural enemies until the arrival of humans and therefore did not need to develop flying wings.
这是因为人类到达这里之前，这些鸟没有天敌，因此，它们不需要发育飞行的翅膀。