🧩 词语组成解析
leaf
[lif]
n. 叶子;页;叶状的结构;金属薄片;
vt.& vi. 翻书（报）;
vi. 生叶;
foot
[fʊt]
n. 脚;底部;英尺(=12 英寸或 30。48 厘米);脚步;
vt. 走，踏;
vt.& vi. 结算，总计，共计;
bug
[bʌɡ]
n. 昆虫;陷，瑕疵;细菌，病菌;窃听器;
vt. 在…装窃听器;打扰，烦恼;折磨，使痛苦;（使眼球）暴突或变大;
vi. 变大;凸出;
🗣️ 情景例句
Is it all right if I use my credit card?
如果我使用信用卡行吗？
They won't listen, so don't waste your breath telling them.
他们听不进去，不必和他们多费口舌了。
a flight attendant told us to keep calm and to get off the plane quietly as soon as it had touched down.
一位空中乘务员告诉我们要保持镇静，待飞机一着陆，就马上不声不响地离开飞机。