1 single (recording industry)

1 to insert

2 stick in

3 pierce

4 to take part in

5 to interfere

6 to interpose

1 surname Qu

1 song

1 symphony

1 lit. knifes piercing both sides (idiom)

2 fig. to attach a great importance to friendship, up to the point of being able to sacrifice oneself for it

1 to include impromptu comic material in opera performance (idiom); to jest

2 buffoonery

1 lit. even given wings, you couldn't fly (idiom); fig. impossible to escape

1 lit. right and wrong, crooked and straight (idiom); fig. merits and demerits

2 pros and cons

1 lit. to bend the chimney and remove the firewood (to prevent fire) (idiom)

2 fig. to take preventive measures