笑声

laughter; laugh

掩饰

cover up; conceal; hide; mask; disguise; cloak; veil; gloss over; camouflage; cover; blind; concealment; gloss; screen; veiled; sugar-coated

焦虑

anxiety; unease; care; suspense; turmoil; cloud; hang-up; inquietude; dither; angst; disquietude; stress; strain; nerve; anxious; worried; nervous; uncomfortable; jittery; tense; antsy; fraught; nervy; angsty; angst-ridden; troubled; worry; mind; disturb; fret; tremble; het up; with bated breath